#122 store utc time in the databse + obtain timezone offset of the client upon login + offset times returned to client based on session offset

PlexRequests.Helpers/DateTimeHelper.cs

@@ -0,0 +1,14 @@
+using System;
+
+namespace PlexRequests.Helpers
+{
+    public static class DateTimeHelper
+    {
+        public static DateTimeOffset OffsetUTCDateTime(DateTime utcDateTime, int minuteOffset)
+        {
+            TimeSpan ts = TimeSpan.FromMinutes(-minuteOffset);
+            return new DateTimeOffset(utcDateTime).ToOffset(ts);
+        }
+
+    }
+}