/// <summary>
/// Converts a localTime from a source time zone to a target time zone, adjusting for DST as needed.
/// The localTime must be a local time in the sourceTimeZoneName time zone.
/// </summary>
/// <param name="sourceTimeZoneName">Time zone name which represents localTime.</param>
/// <param name="localTime">The source local time.</param>
/// <param name="targetTimeZoneName">The time zone name which to convert the localTime.</param>
/// <returns>The local time for targetTimeZoneName.</returns>
public static DateTime ToLocalTime(string sourceTimeZoneName, DateTime localTime, string targetTimeZoneName)
{
DateTime utc = TimeZoneInformation.ToUniversalTime(sourceTimeZoneName, localTime);
DateTime lt = TimeZoneInformation.ToLocalTime(utc, targetTimeZoneName);
return(lt);
}
public override void Repaint()
{
DateTime lUtc = DateTime.UtcNow;
lock (_Graphic)
{
_Graphic.FillRectangle(Brushes.Black, 0, 0, 96, 96);
for (int i = 0; i < 5; i++)
{
TimezoneItem lItem = _Timezones[i];
if (lItem == null)
{
continue;
}
string lTime = string.Format("{0} {1}", TimeZoneInformation.ToLocalTime(lUtc, lItem.Timezone.StandardName).ToShortTimeString(), lItem.Label);
_Graphic.DrawString(lTime, SystemFonts.DefaultFont, Brushes.White, 0, i * 19);
}
_Graphic.Flush();
UpdateImage(_Bitmap);
}
}
/// <summary>
/// Converts the value of the utc time to local time in supplied time zone.
/// </summary>
/// <param name="utc">The time to convert.</param>
/// <param name="targetTimeZoneName">The standard name of the time zone.</param>
/// <returns>The local time.</returns>
/// <exception cref="ArgumentException">Thrown if time zone not found.</exception>
public static DateTime ToLocalTime(DateTime utc, string targetTimeZoneName)
{
TimeZoneInformation tzi = TimeZoneInformation.GetTimeZone(targetTimeZoneName);
return(tzi.ToLocalTime(utc));
}