diff --git a/test/date_test/time_of_day_hours.pass.cpp b/test/date_test/time_of_day_hours.pass.cpp
index aed0e04..85ebb50 100644
--- a/test/date_test/time_of_day_hours.pass.cpp
+++ b/test/date_test/time_of_day_hours.pass.cpp
@@ -57,7 +57,7 @@ main()
 
     using tod = time_of_day<hours>;
 
-    static_assert(is_same<tod::precision, hours>{}, "");
+    static_assert(is_same<tod::precision::period, hours::period>{}, "");
 
     static_assert( is_trivially_destructible<tod>{}, "");
     static_assert( is_default_constructible<tod>{}, "");
@@ -68,7 +68,6 @@ main()
 
     static_assert(is_nothrow_constructible<tod, hours>{}, "");
     static_assert(!is_convertible<hours, tod>{}, "");
-    static_assert(is_nothrow_constructible<tod, hours, unsigned>{}, "");
 
     static_assert(is_nothrow_constructible<tod::precision, tod>{}, "");
     static_assert(!is_convertible<tod, tod::precision>{}, "");
diff --git a/test/date_test/time_of_day_milliseconds.pass.cpp b/test/date_test/time_of_day_milliseconds.pass.cpp
index fb32929..30d690d 100644
--- a/test/date_test/time_of_day_milliseconds.pass.cpp
+++ b/test/date_test/time_of_day_milliseconds.pass.cpp
@@ -65,7 +65,7 @@ main()
 
     using tod = time_of_day<milliseconds>;
 
-    static_assert(is_same<tod::precision, milliseconds>{}, "");
+    static_assert(is_same<tod::precision::period, milliseconds::period>{}, "");
 
     static_assert( is_trivially_destructible<tod>{}, "");
     static_assert( is_default_constructible<tod>{}, "");
@@ -76,8 +76,6 @@ main()
 
     static_assert(is_nothrow_constructible<tod, milliseconds>{}, "");
     static_assert(!is_convertible<milliseconds, tod>{}, "");
-    static_assert(is_nothrow_constructible<tod, hours, minutes, seconds, milliseconds,
-                                                unsigned>{}, "");
 
     static_assert(is_nothrow_constructible<tod::precision, tod>{}, "");
     static_assert(!is_convertible<tod, tod::precision>{}, "");
diff --git a/test/date_test/time_of_day_minutes.pass.cpp b/test/date_test/time_of_day_minutes.pass.cpp
index 5b2c63e..dda8710 100644
--- a/test/date_test/time_of_day_minutes.pass.cpp
+++ b/test/date_test/time_of_day_minutes.pass.cpp
@@ -59,7 +59,7 @@ main()
 
     using tod = time_of_day<minutes>;
 
-    static_assert(is_same<tod::precision, minutes>{}, "");
+    static_assert(is_same<tod::precision::period, minutes::period>{}, "");
 
     static_assert( is_trivially_destructible<tod>{}, "");
     static_assert( is_default_constructible<tod>{}, "");
@@ -70,7 +70,6 @@ main()
 
     static_assert(is_nothrow_constructible<tod, minutes>{}, "");
     static_assert(!is_convertible<minutes, tod>{}, "");
-    static_assert(is_nothrow_constructible<tod, hours, minutes, unsigned>{}, "");
 
     static_assert(is_nothrow_constructible<tod::precision, tod>{}, "");
     static_assert(!is_convertible<tod, tod::precision>{}, "");
diff --git a/test/date_test/time_of_day_nanoseconds.pass.cpp b/test/date_test/time_of_day_nanoseconds.pass.cpp
index 3c6da21..9d5e456 100644
--- a/test/date_test/time_of_day_nanoseconds.pass.cpp
+++ b/test/date_test/time_of_day_nanoseconds.pass.cpp
@@ -65,7 +65,7 @@ main()
 
     using tod = time_of_day<nanoseconds>;
 
-    static_assert(is_same<tod::precision, nanoseconds>{}, "");
+    static_assert(is_same<tod::precision::period, nanoseconds::period>{}, "");
 
     static_assert( is_trivially_destructible<tod>{}, "");
     static_assert( is_default_constructible<tod>{}, "");
@@ -76,8 +76,6 @@ main()
 
     static_assert(is_nothrow_constructible<tod, nanoseconds>{}, "");
     static_assert(!is_convertible<nanoseconds, tod>{}, "");
-    static_assert(is_nothrow_constructible<tod, hours, minutes, seconds, nanoseconds,
-                                                unsigned>{}, "");
 
     static_assert(is_nothrow_constructible<tod::precision, tod>{}, "");
     static_assert(!is_convertible<tod, tod::precision>{}, "");
diff --git a/test/date_test/time_of_day_seconds.pass.cpp b/test/date_test/time_of_day_seconds.pass.cpp
index a6d7814..09dec9e 100644
--- a/test/date_test/time_of_day_seconds.pass.cpp
+++ b/test/date_test/time_of_day_seconds.pass.cpp
@@ -60,7 +60,7 @@ main()
 
     using tod = time_of_day<seconds>;
 
-    static_assert(is_same<tod::precision, seconds>{}, "");
+    static_assert(is_same<tod::precision::period, seconds::period>{}, "");
 
     static_assert( is_trivially_destructible<tod>{}, "");
     static_assert( is_default_constructible<tod>{}, "");
@@ -71,7 +71,6 @@ main()
 
     static_assert(is_nothrow_constructible<tod, seconds>{}, "");
     static_assert(!is_convertible<seconds, tod>{}, "");
-    static_assert(is_nothrow_constructible<tod, hours, minutes, seconds, unsigned>{}, "");
 
     static_assert(is_nothrow_constructible<tod::precision, tod>{}, "");
     static_assert(!is_convertible<tod, tod::precision>{}, "");