diff --git a/test/date_test/op_div_day_day.fail.cpp b/test/date_test/op_div_day_day.fail.cpp
new file mode 100644
index 0000000..77cbef2
--- /dev/null
+++ b/test/date_test/op_div_day_day.fail.cpp
@@ -0,0 +1,33 @@
+// The MIT License (MIT)
+// 
+// Copyright (c) 2015 Howard Hinnant
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+// day / day not allowed
+ 
+#include "date.h"
+
+int
+main()
+{
+    using namespace date;
+
+    auto x = 14_d/14_d;
+}
diff --git a/test/date_test/op_div_int_month.fail.cpp b/test/date_test/op_div_int_month.fail.cpp
new file mode 100644
index 0000000..8c8a6e8
--- /dev/null
+++ b/test/date_test/op_div_int_month.fail.cpp
@@ -0,0 +1,33 @@
+// The MIT License (MIT)
+// 
+// Copyright (c) 2015 Howard Hinnant
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+// int / month not allowed
+ 
+#include "date.h"
+
+int
+main()
+{
+    using namespace date;
+
+    auto x = 8/aug;
+}
diff --git a/test/date_test/op_div_int_year.fail.cpp b/test/date_test/op_div_int_year.fail.cpp
new file mode 100644
index 0000000..507c2be
--- /dev/null
+++ b/test/date_test/op_div_int_year.fail.cpp
@@ -0,0 +1,33 @@
+// The MIT License (MIT)
+// 
+// Copyright (c) 2015 Howard Hinnant
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+// int / year not allowed
+ 
+#include "date.h"
+
+int
+main()
+{
+    using namespace date;
+
+    auto x = 8/2015_y;
+}
diff --git a/test/date_test/op_div_last_last.fail.cpp b/test/date_test/op_div_last_last.fail.cpp
new file mode 100644
index 0000000..345b4d6
--- /dev/null
+++ b/test/date_test/op_div_last_last.fail.cpp
@@ -0,0 +1,33 @@
+// The MIT License (MIT)
+// 
+// Copyright (c) 2015 Howard Hinnant
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+// last / last not allowed
+ 
+#include "date.h"
+
+int
+main()
+{
+    using namespace date;
+
+    auto x = last/last;
+}
diff --git a/test/date_test/op_div_month_day.pass.cpp b/test/date_test/op_div_month_day.pass.cpp
new file mode 100644
index 0000000..55f0ce2
--- /dev/null
+++ b/test/date_test/op_div_month_day.pass.cpp
@@ -0,0 +1,41 @@
+// The MIT License (MIT)
+// 
+// Copyright (c) 2015 Howard Hinnant
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+// constexpr month_day operator/(const month& m, const day& d) noexcept;
+// constexpr month_day operator/(const month& m, int d) noexcept;
+// constexpr month_day operator/(int   m, const day& d) noexcept;
+// constexpr month_day operator/(const day& d, const month& m) noexcept;
+// constexpr month_day operator/(const day& d,   int m) noexcept;
+
+#include "date.h"
+
+int
+main()
+{
+    using namespace date;
+
+    static_assert( aug/14_d == month_day{month{8}, day{14}}, "");
+    static_assert( aug/14   == month_day{month{8}, day{14}}, "");
+    static_assert(   8/14_d == month_day{month{8}, day{14}}, "");
+    static_assert(14_d/aug  == month_day{month{8}, day{14}}, "");
+    static_assert(14_d/8    == month_day{month{8}, day{14}}, "");
+}
diff --git a/test/date_test/op_div_month_day_last.pass.cpp b/test/date_test/op_div_month_day_last.pass.cpp
new file mode 100644
index 0000000..37a8f4d
--- /dev/null
+++ b/test/date_test/op_div_month_day_last.pass.cpp
@@ -0,0 +1,39 @@
+// The MIT License (MIT)
+// 
+// Copyright (c) 2015 Howard Hinnant
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+// constexpr month_day_last operator/(const month& m, last_spec) noexcept;
+// constexpr month_day_last operator/(int   m, last_spec) noexcept;
+// constexpr month_day_last operator/(last_spec, const month& m) noexcept;
+// constexpr month_day_last operator/(last_spec, int   m) noexcept;
+ 
+#include "date.h"
+
+int
+main()
+{
+    using namespace date;
+
+    static_assert( aug/last == month_day_last{month{8}}, "");
+    static_assert(   8/last == month_day_last{month{8}}, "");
+    static_assert(last/aug  == month_day_last{month{8}}, "");
+    static_assert(last/8    == month_day_last{month{8}}, "");
+}
diff --git a/test/date_test/op_div_month_day_month_day.fail.cpp b/test/date_test/op_div_month_day_month_day.fail.cpp
new file mode 100644
index 0000000..ce087b3
--- /dev/null
+++ b/test/date_test/op_div_month_day_month_day.fail.cpp
@@ -0,0 +1,33 @@
+// The MIT License (MIT)
+// 
+// Copyright (c) 2015 Howard Hinnant
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+// month_day / month_day not allowed
+ 
+#include "date.h"
+
+int
+main()
+{
+    using namespace date;
+
+    auto x = (aug/14_d)/(aug/14_d);
+}
diff --git a/test/date_test/op_div_month_month.fail.cpp b/test/date_test/op_div_month_month.fail.cpp
new file mode 100644
index 0000000..db6ebe0
--- /dev/null
+++ b/test/date_test/op_div_month_month.fail.cpp
@@ -0,0 +1,33 @@
+// The MIT License (MIT)
+// 
+// Copyright (c) 2015 Howard Hinnant
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+// month / month not allowed
+ 
+#include "date.h"
+
+int
+main()
+{
+    using namespace date;
+
+    auto x = aug/aug;
+}
diff --git a/test/date_test/op_div_month_weekday.pass.cpp b/test/date_test/op_div_month_weekday.pass.cpp
new file mode 100644
index 0000000..99e1f74
--- /dev/null
+++ b/test/date_test/op_div_month_weekday.pass.cpp
@@ -0,0 +1,39 @@
+// The MIT License (MIT)
+// 
+// Copyright (c) 2015 Howard Hinnant
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+// constexpr month_weekday operator/(const month& m, const weekday_indexed& wdi) noexcept;
+// constexpr month_weekday operator/(int   m, const weekday_indexed& wdi) noexcept;
+// constexpr month_weekday operator/(const weekday_indexed& wdi, const month& m) noexcept;
+// constexpr month_weekday operator/(const weekday_indexed& wdi, int   m) noexcept;
+
+#include "date.h"
+
+int
+main()
+{
+    using namespace date;
+
+    static_assert(   aug/fri[2] == month_weekday{month{8}, weekday_indexed{weekday{5}, 2}}, "");
+    static_assert(     8/fri[2] == month_weekday{month{8}, weekday_indexed{weekday{5}, 2}}, "");
+    static_assert(fri[2]/aug    == month_weekday{month{8}, weekday_indexed{weekday{5}, 2}}, "");
+    static_assert(fri[2]/8      == month_weekday{month{8}, weekday_indexed{weekday{5}, 2}}, "");
+}
diff --git a/test/date_test/op_div_month_weekday_last.pass.cpp b/test/date_test/op_div_month_weekday_last.pass.cpp
new file mode 100644
index 0000000..ace85e0
--- /dev/null
+++ b/test/date_test/op_div_month_weekday_last.pass.cpp
@@ -0,0 +1,39 @@
+// The MIT License (MIT)
+// 
+// Copyright (c) 2015 Howard Hinnant
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+// constexpr month_weekday_last operator/(const month& m, const weekday_last& wdl) noexcept;
+// constexpr month_weekday_last operator/(int   m, const weekday_last& wdl) noexcept;
+// constexpr month_weekday_last operator/(const weekday_last& wdl, const month& m) noexcept;
+// constexpr month_weekday_last operator/(const weekday_last& wdl, int   m) noexcept;
+
+#include "date.h"
+
+int
+main()
+{
+    using namespace date;
+
+    static_assert(      aug/fri[last] == month_weekday_last{month{8}, weekday_last{weekday{5}}}, "");
+    static_assert(        8/fri[last] == month_weekday_last{month{8}, weekday_last{weekday{5}}}, "");
+    static_assert(fri[last]/aug       == month_weekday_last{month{8}, weekday_last{weekday{5}}}, "");
+    static_assert(fri[last]/8         == month_weekday_last{month{8}, weekday_last{weekday{5}}}, "");
+}
diff --git a/test/date_test/op_div_month_year.fail.cpp b/test/date_test/op_div_month_year.fail.cpp
new file mode 100644
index 0000000..4cadfde
--- /dev/null
+++ b/test/date_test/op_div_month_year.fail.cpp
@@ -0,0 +1,33 @@
+// The MIT License (MIT)
+// 
+// Copyright (c) 2015 Howard Hinnant
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+// month / year not allowed
+ 
+#include "date.h"
+
+int
+main()
+{
+    using namespace date;
+
+    auto x = aug/2015_y;
+}
diff --git a/test/date_test/op_div_weekday_indexed_weekday_indexed.fail.cpp b/test/date_test/op_div_weekday_indexed_weekday_indexed.fail.cpp
new file mode 100644
index 0000000..ab969ee
--- /dev/null
+++ b/test/date_test/op_div_weekday_indexed_weekday_indexed.fail.cpp
@@ -0,0 +1,33 @@
+// The MIT License (MIT)
+// 
+// Copyright (c) 2015 Howard Hinnant
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+// weekday_indexed / weekday_indexed not allowed
+ 
+#include "date.h"
+
+int
+main()
+{
+    using namespace date;
+
+    auto x = fri[2]/fri[2];
+}
diff --git a/test/date_test/op_div_weekday_last_weekday_last.fail.cpp b/test/date_test/op_div_weekday_last_weekday_last.fail.cpp
new file mode 100644
index 0000000..fa8ff7a
--- /dev/null
+++ b/test/date_test/op_div_weekday_last_weekday_last.fail.cpp
@@ -0,0 +1,33 @@
+// The MIT License (MIT)
+// 
+// Copyright (c) 2015 Howard Hinnant
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+// weekday_last / weekday_last not allowed
+ 
+#include "date.h"
+
+int
+main()
+{
+    using namespace date;
+
+    auto x = fri[last]/fri[last];
+}
diff --git a/test/date_test/op_div_year_month.pass.cpp b/test/date_test/op_div_year_month.pass.cpp
new file mode 100644
index 0000000..0639aaf
--- /dev/null
+++ b/test/date_test/op_div_year_month.pass.cpp
@@ -0,0 +1,35 @@
+// The MIT License (MIT)
+// 
+// Copyright (c) 2015 Howard Hinnant
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+// constexpr year_month operator/(const year& y, const month& m) noexcept;
+// constexpr year_month operator/(const year& y, int   m) noexcept;
+ 
+#include "date.h"
+
+int
+main()
+{
+    using namespace date;
+
+    static_assert(2015_y/aug == year_month{year{2015}, aug}, "");
+    static_assert(2015_y/8   == year_month{year{2015}, aug}, "");
+}
diff --git a/test/date_test/op_div_year_month_day.pass.cpp b/test/date_test/op_div_year_month_day.pass.cpp
new file mode 100644
index 0000000..b415312
--- /dev/null
+++ b/test/date_test/op_div_year_month_day.pass.cpp
@@ -0,0 +1,43 @@
+// The MIT License (MIT)
+// 
+// Copyright (c) 2015 Howard Hinnant
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+// constexpr year_month_day operator/(const year_month& ym, const day& d) noexcept;
+// constexpr year_month_day operator/(const year_month& ym, int d) noexcept;
+// constexpr year_month_day operator/(const year& y, const month_day& md) noexcept;
+// constexpr year_month_day operator/(int  y, const month_day& md) noexcept;
+// constexpr year_month_day operator/(const month_day& md, const year& y) noexcept;
+// constexpr year_month_day operator/(const month_day& md, int  y) noexcept;
+
+#include "date.h"
+
+int
+main()
+{
+    using namespace date;
+
+    static_assert(  2015_y/aug/14_d   == year_month_day{year{2015}, month{8}, day{14}}, "");
+    static_assert(  2015_y/aug/14     == year_month_day{year{2015}, month{8}, day{14}}, "");
+    static_assert(  2015_y/(aug/14_d) == year_month_day{year{2015}, month{8}, day{14}}, "");
+    static_assert(    2015/(aug/14_d) == year_month_day{year{2015}, month{8}, day{14}}, "");
+    static_assert(aug/14_d/2015_y     == year_month_day{year{2015}, month{8}, day{14}}, "");
+    static_assert(aug/14_d/2015       == year_month_day{year{2015}, month{8}, day{14}}, "");
+}
diff --git a/test/date_test/op_div_year_month_day_last.pass.cpp b/test/date_test/op_div_year_month_day_last.pass.cpp
new file mode 100644
index 0000000..20c3e55
--- /dev/null
+++ b/test/date_test/op_div_year_month_day_last.pass.cpp
@@ -0,0 +1,41 @@
+// The MIT License (MIT)
+// 
+// Copyright (c) 2015 Howard Hinnant
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+// constexpr year_month_day_last operator/(const year_month& ym, last_spec) noexcept;
+// constexpr year_month_day_last operator/(const year& y, const month_day_last& mdl) noexcept;
+// constexpr year_month_day_last operator/(int y, const month_day_last& mdl) noexcept;
+// constexpr year_month_day_last operator/(const month_day_last& mdl, const year& y) noexcept;
+// constexpr year_month_day_last operator/(const month_day_last& mdl, int y) noexcept;
+ 
+#include "date.h"
+
+int
+main()
+{
+    using namespace date;
+
+    static_assert(2015_y/aug/last       == year_month_day_last{year{2015}, month_day_last{month{8}}}, "");
+    static_assert(    2015_y/(aug/last) == year_month_day_last{year{2015}, month_day_last{month{8}}}, "");
+    static_assert(      2015/(aug/last) == year_month_day_last{year{2015}, month_day_last{month{8}}}, "");
+    static_assert(  aug/last/2015_y     == year_month_day_last{year{2015}, month_day_last{month{8}}}, "");
+    static_assert(  aug/last/2015       == year_month_day_last{year{2015}, month_day_last{month{8}}}, "");
+}
diff --git a/test/date_test/op_div_year_month_weekday.pass.cpp b/test/date_test/op_div_year_month_weekday.pass.cpp
new file mode 100644
index 0000000..9e437b3
--- /dev/null
+++ b/test/date_test/op_div_year_month_weekday.pass.cpp
@@ -0,0 +1,41 @@
+// The MIT License (MIT)
+// 
+// Copyright (c) 2015 Howard Hinnant
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+// constexpr year_month_weekday operator/(const year_month& ym, const weekday_indexed& wdi) noexcept;
+// constexpr year_month_weekday operator/(const year&        y, const month_weekday&   mwd) noexcept;
+// constexpr year_month_weekday operator/(int                y, const month_weekday&   mwd) noexcept;
+// constexpr year_month_weekday operator/(const month_weekday& mwd, const year&          y) noexcept;
+// constexpr year_month_weekday operator/(const month_weekday& mwd, int                  y) noexcept;
+
+#include "date.h"
+
+int
+main()
+{
+    using namespace date;
+
+    static_assert(2015_y/aug/fri[2]       == year_month_weekday{year{2015}, month{8}, weekday_indexed{weekday{5}, 2}}, "");
+    static_assert(    2015_y/(aug/fri[2]) == year_month_weekday{year{2015}, month{8}, weekday_indexed{weekday{5}, 2}}, "");
+    static_assert(      2015/(aug/fri[2]) == year_month_weekday{year{2015}, month{8}, weekday_indexed{weekday{5}, 2}}, "");
+    static_assert(aug/fri[2]/2015_y       == year_month_weekday{year{2015}, month{8}, weekday_indexed{weekday{5}, 2}}, "");
+    static_assert(aug/fri[2]/2015         == year_month_weekday{year{2015}, month{8}, weekday_indexed{weekday{5}, 2}}, "");
+}
diff --git a/test/date_test/op_div_year_month_weekday_last.pass.cpp b/test/date_test/op_div_year_month_weekday_last.pass.cpp
new file mode 100644
index 0000000..d75710a
--- /dev/null
+++ b/test/date_test/op_div_year_month_weekday_last.pass.cpp
@@ -0,0 +1,41 @@
+// The MIT License (MIT)
+// 
+// Copyright (c) 2015 Howard Hinnant
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+// constexpr year_month_weekday_last operator/(const year_month& ym, const weekday_last& wdl) noexcept;
+// constexpr year_month_weekday_last operator/(const year& y, const month_weekday_last& mwdl) noexcept;
+// constexpr year_month_weekday_last operator/(int y, const month_weekday_last& mwdl) noexcept;
+// constexpr year_month_weekday_last operator/(const month_weekday_last& mwdl, const year& y) noexcept;
+// constexpr year_month_weekday_last operator/(const month_weekday_last& mwdl, int y) noexcept;
+
+#include "date.h"
+
+int
+main()
+{
+    using namespace date;
+
+    static_assert(   2015_y/aug/fri[last]       == year_month_weekday_last{year{2015}, month{8}, weekday_last{weekday{5}}}, "");
+    static_assert(       2015_y/(aug/fri[last]) == year_month_weekday_last{year{2015}, month{8}, weekday_last{weekday{5}}}, "");
+    static_assert(         2015/(aug/fri[last]) == year_month_weekday_last{year{2015}, month{8}, weekday_last{weekday{5}}}, "");
+    static_assert(aug/fri[last]/2015_y          == year_month_weekday_last{year{2015}, month{8}, weekday_last{weekday{5}}}, "");
+    static_assert(aug/fri[last]/2015            == year_month_weekday_last{year{2015}, month{8}, weekday_last{weekday{5}}}, "");
+}
diff --git a/test/date_test/op_div_year_month_year_month.fail.cpp b/test/date_test/op_div_year_month_year_month.fail.cpp
new file mode 100644
index 0000000..8201d73
--- /dev/null
+++ b/test/date_test/op_div_year_month_year_month.fail.cpp
@@ -0,0 +1,33 @@
+// The MIT License (MIT)
+// 
+// Copyright (c) 2015 Howard Hinnant
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+// year_month / year_month not allowed
+ 
+#include "date.h"
+
+int
+main()
+{
+    using namespace date;
+
+    auto x = (2015_y/aug)/(2015_y/aug);
+}
diff --git a/test/date_test/op_div_year_year.fail.cpp b/test/date_test/op_div_year_year.fail.cpp
new file mode 100644
index 0000000..4ba0902
--- /dev/null
+++ b/test/date_test/op_div_year_year.fail.cpp
@@ -0,0 +1,33 @@
+// The MIT License (MIT)
+// 
+// Copyright (c) 2015 Howard Hinnant
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+// year / year not allowed
+ 
+#include "date.h"
+
+int
+main()
+{
+    using namespace date;
+
+    auto x = 2015_y/2015_y;
+}
diff --git a/test/date_test/year_month_day_last.pass.cpp b/test/date_test/year_month_day_last.pass.cpp
index 8f789d3..fdd1df0 100644
--- a/test/date_test/year_month_day_last.pass.cpp
+++ b/test/date_test/year_month_day_last.pass.cpp
@@ -152,10 +152,12 @@ main()
     static_assert(ymdl1.year() == 2015_y, "");
     static_assert(ymdl1.month() == aug, "");
     static_assert(ymdl1.month_day_last() == month_day_last{aug}, "");
+#if __cplusplus >= 201402
     static_assert(ymdl1.day() == 31_d, "");
     constexpr day_point dp = ymdl1;
     constexpr year_month_day ymd = dp;
     static_assert(ymd == 2015_y/aug/31, "");
+#endif
 
     constexpr year_month_day_last ymdl2 = {2015_y, month_day_last{sep}};
 
diff --git a/test/date_test/year_month_weekday.pass.cpp b/test/date_test/year_month_weekday.pass.cpp
index 86bebf0..1986de1 100644
--- a/test/date_test/year_month_weekday.pass.cpp
+++ b/test/date_test/year_month_weekday.pass.cpp
@@ -147,13 +147,17 @@ main()
     using namespace date;
 
     constexpr year_month_weekday ymdl1 = {2015_y, aug, weekday_indexed{fri, 2}};
+#if __cplusplus >= 201402
     static_assert(ymdl1.ok(), "");
+#endif
     static_assert(ymdl1.year() == 2015_y, "");
     static_assert(ymdl1.month() == aug, "");
     static_assert(ymdl1.weekday_indexed() == fri[2], "");
+#if __cplusplus >= 201402
     constexpr day_point dp = ymdl1;
     constexpr year_month_day ymd = dp;
     static_assert(ymd == 2015_y/aug/14, "");
+#endif
 
     constexpr year_month_weekday ymdl2 = sat[1]/aug/2015;
 
diff --git a/test/date_test/year_month_weekday_last.pass.cpp b/test/date_test/year_month_weekday_last.pass.cpp
index 8f6abeb..2dead76 100644
--- a/test/date_test/year_month_weekday_last.pass.cpp
+++ b/test/date_test/year_month_weekday_last.pass.cpp
@@ -147,9 +147,11 @@ main()
     static_assert(ymdl1.year() == 2015_y, "");
     static_assert(ymdl1.month() == aug, "");
     static_assert(ymdl1.weekday_last() == fri[last], "");
+#if __cplusplus >= 201402
     constexpr day_point dp = ymdl1;
     constexpr year_month_day ymd = dp;
     static_assert(ymd == 2015_y/aug/28, "");
+#endif
 
     constexpr year_month_weekday_last ymdl2 = sat[last]/aug/2015;