diff --git a/Client/Writes/PointData.Builder.cs b/Client/Writes/PointData.Builder.cs
index 4815c8e04..c8e453868 100644
--- a/Client/Writes/PointData.Builder.cs
+++ b/Client/Writes/PointData.Builder.cs
@@ -212,7 +212,11 @@ public Builder Timestamp(TimeSpan timestamp, WritePrecision timeUnit)
             /// <returns></returns>
             public Builder Timestamp(DateTime timestamp, WritePrecision timeUnit)
             {
-                if (timestamp != null && timestamp.Kind != DateTimeKind.Utc)
+                if (
+#if !NETSTANDARD
+                    timestamp != null &&
+#endif
+                    timestamp.Kind != DateTimeKind.Utc)
                 {
                     throw new ArgumentException("Timestamps must be specified as UTC", nameof(timestamp));
                 }