Merge pull request #145 from ParsePlatform/richardross.timezone.fix

Made TimeZone string generation locale-agnostic for Windows Phone and Unity.

Author: richardjrossiii

Parse/Internal/PlatformHooks/Phone/PlatformHooks.Phone.cs

@@ -150,17 +150,12 @@ public string DeviceType {
 
     public string DeviceTimeZone {
       get {
-        // We need the system string to be in english so we'll have the proper key in our lookup table.
-        var culture = Thread.CurrentThread.CurrentCulture;
-        Thread.CurrentThread.CurrentCulture = CultureInfo.InvariantCulture;
-        string windowsName = TimeZoneInfo.Local.StandardName;
-        Thread.CurrentThread.CurrentCulture = culture;
-
-        if (ParseInstallation.TimeZoneNameMap.ContainsKey(windowsName)) {
-          return ParseInstallation.TimeZoneNameMap[windowsName];
-        } else {
-          return null;
-        }
+        TimeSpan utcOffset = TimeZoneInfo.Local.BaseUtcOffset;
+        return String.Format("GMT{0}{1}:{2:d2}",
+          offset.TotalSeconds < 0 ? "-" : "+",
+          Math.Abs(offset.Hours),
+          Math.Abs(offset.Minutes)
+        );
       }
     }
 

Parse/Internal/PlatformHooks/Unity/PlatformHooks.Unity.cs

@@ -87,16 +87,12 @@ public string DeviceType {
 
     public string DeviceTimeZone {
       get {
-        try {
-          string windowsName = TimeZoneInfo.Local.StandardName;
-          if (ParseInstallation.TimeZoneNameMap.ContainsKey(windowsName)) {
-            return ParseInstallation.TimeZoneNameMap[windowsName];
-          } else {
-            return null;
-          }
-        } catch (TimeZoneNotFoundException) {
-          return null;
-        }
+        TimeSpan utcOffset = TimeZoneInfo.Local.BaseUtcOffset;
+        return String.Format("GMT{0}{1}:{2:d2}",
+          offset.TotalSeconds < 0 ? "-" : "+",
+          Math.Abs(offset.Hours),
+          Math.Abs(offset.Minutes)
+        );
       }
     }