diff --git a/sdk/core/azure-core/src/datetime.cpp b/sdk/core/azure-core/src/datetime.cpp
index 288705b3d..750446dc4 100644
--- a/sdk/core/azure-core/src/datetime.cpp
+++ b/sdk/core/azure-core/src/datetime.cpp
@@ -50,11 +50,21 @@ DateTime GetMaxDateTime()
 #pragma warning(disable : 6326)
 #endif
   static_assert(
-      std::is_same<DateTime::clock::duration::rep, std::chrono::system_clock::duration::rep>::value,
-      "DateTime::clock::duration::rep must be the same as "
-      "std::chrono::system_clock::duration::rep");
+      std::is_signed<std::chrono::system_clock::duration::rep>::value
+          && std::is_integral<std::chrono::system_clock::duration::rep>::value
+          && sizeof(std::chrono::system_clock::duration::rep) <= sizeof(std::int64_t),
+      "Currently, GetMaxDateTime() is written with an expectation that "
+      "std::chrono::system_clock::duration::rep is signed integral type that can fit into 64 "
+      "bits.");
 
-  using Rep = DateTime::clock::duration::rep;
+  static_assert(
+      std::is_signed<DateTime::clock::duration::rep>::value
+          && std::is_integral<DateTime::clock::duration::rep>::value
+          && sizeof(DateTime::clock::duration::rep) <= sizeof(std::int64_t),
+      "GetMaxDateTime() expects DateTime::clock::duration::rep to be signed integral type that can "
+      "fit into 64 bits.");
+
+  using Rep = std::int64_t;
 
   using CommonDuration = std::chrono::duration<
       Rep,