Get DateTime.Now for a specific TimeZone regardless of the device timezone?

Question

I have MonoTouch app which process data from a webservice. This data contains date information which is specific to a timezone. The timezone is UTC +12 which is for New Zealand.

Answer 1

Use DateTime.Now. This will give you system TimeZone Date and Time. Now convert that time to desired timezone time like this

var indianTime = TimeZoneInfo.ConvertTime (DateTime.Now,
                 TimeZoneInfo.FindSystemTimeZoneById("India Standard Time"));

To get list of TimeZone run this method

ReadOnlyCollection<TimeZoneInfo> zones = TimeZoneInfo.GetSystemTimeZones();
Console.WriteLine("The local system has the following {0} time zones", zones.Count);
foreach (TimeZoneInfo zone in zones)
    Console.WriteLine(zone.Id);

Answer 2

You can do it like:

Datetime date = TimeZoneInfo.ConvertTime(utcDateTime, timeZone); 

Just pass the given parameters.

Answer 3

This is a bug in MonoTouch.

The fix will be included in a future version of MonoTouch (I don't know exactly which yet though).

In any case there is already a hotfix available.