How to change time zone for an asp.net application

Question

I need to set default timezone for my ASP.NET to Asia/Dhaka or GMT+6 timezone. But i cannot find a way to change it globally. There is a lot of reference on Stackoverflow an

Answer 1

Having a similar issue (with Time zones) I ended up changing some database types from DateTime to DateTimeOffset (MSSql).

DateTimeOffset Struct

Wrote an extension

public static class Extensions
{
    public static DateTimeOffset ToCentralTime(this DateTimeOffset value)
    {
        return TimeZoneInfo.ConvertTime(value, TimeZoneInfo.FindSystemTimeZoneById("Central Standard Time"));
    }
}

Example of use:

public class ClockPunch
{
    private DateTimeOffset dtoTimeIn;
    private DateTimeOffset? dtoTimeOut;
    public ClockPunch() { }
    public DateTimeOffset TimeIn
    {
        get { return dtoTimeIn.ToCentralTime(); }
        set { dtoTimeIn = value; }
    }
    public DateTimeOffset? TimeOut
    {
        get
        {
            DateTimeOffset? retVal = null;
            if (dtoTimeOut != null)
            {
                retVal = ((DateTimeOffset)dtoTimeOut).ToCentralTime();
            }
            return retVal;
        }
        set { dtoTimeOut = value; }
    }
}