CODEWITHSUNDEEP
asp.net-core-3.0
dhrm
dhrm

Reputation: 14944

Was there a change in timezone for ToLocalTime

Currently I'm using ToLocalTime to convert the UTC date received from my backend. Is there a way to setup my ASP.NET Core 3.0 web site to use a specific timezone when calling ToLocalTime (instead of depending on the host region) -- or should I implement my own method/extension to converting to the time I need?

Upvotes: 0

Views: 236

Answers (1)

Zohar Peled
Zohar Peled

Reputation: 82564

Official documentation of DateTime.ToLocalTime states:

Note that the exact output depends on the current culture and the local time zone of the system on which it is run.

You can use the TimeZoneInfo static method ConvertTimeFromUtc to convert an instance of DateTime (Note: if it's Kind property is Local you'll get an exception!) from Utc to whatever local time you want (Another note: the Kind property of the result is either Utc or Unspecified - depending on the target TimeZoneInfo).

Code example (copied from documentation page):

DateTime timeUtc = DateTime.UtcNow;
try
{
   TimeZoneInfo cstZone = TimeZoneInfo.FindSystemTimeZoneById("Central Standard Time");
   DateTime cstTime = TimeZoneInfo.ConvertTimeFromUtc(timeUtc, cstZone);
   Console.WriteLine("The date and time are {0} {1}.", 
                     cstTime, 
                     cstZone.IsDaylightSavingTime(cstTime) ?
                             cstZone.DaylightName : cstZone.StandardName);
}
catch (TimeZoneNotFoundException)
{
   Console.WriteLine("The registry does not define the Central Standard Time zone.");
}                           
catch (InvalidTimeZoneException)
{
   Console.WriteLine("Registry data on the Central Standard Time zone has been corrupted.");
}

Upvotes: 2

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