Initial commit carried over from private repo. This is V2.

code/MessengerApi.Db/Converters/DateTimeAsUtcValueConverter.cs

@@ -0,0 +1,8 @@
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+namespace MessengerApi.Db.Converters
+{
+    public sealed class DateTimeAsUtcValueConverter()
+            : ValueConverter<DateTime, DateTime>(
+                v => v, v => new DateTime(v.Ticks, DateTimeKind.Utc));
+}