diff --git a/include/date/date.h b/include/date/date.h
index 28f4df0..1e534f6 100644
--- a/include/date/date.h
+++ b/include/date/date.h
@@ -1004,6 +1004,8 @@ struct is_clock<T, std::void_t<decltype(T::now()), typename T::rep, typename T::
     : std::true_type
 {};
 
+template<class T> inline constexpr bool is_clock_v = is_clock<T>::value;
+
 #endif  // HAS_VOID_T
 
 //----------------+