Easy way to work with Time Zones

Easy way to work with Time Zones

• Nauman Raza

  But let say if i store all my data with UTC, i am in PST, how can I get the time Mountain Standard Time I can't just UTCNow.AddHour(2) because users don't just use my application from Mountain Standard Time. LocalTime may work, but another area may need to access another time zone info. Anyway the main point is I wish I can convert UTC to specific Time Zone, without hand coding all the offsets nad take Daylight saving in to account.

  Thanks....

  
  

• ColleenR

  thanks for the reply.

  how about this.. let say i store all my time in UTC format, how can i convert back to Pacific Standand Time (PST) Central Time How does DST will be resolved

  Thank you very very much...

  Alan,

  
  

• skyshock21

  If your asking is there a simple

  There's no ConvertTimezone(sourceTimezone, destinationTimeZone, datetime ) call in the language or the framework out of the box. The answer is no.

  The functions I detailed will convert from local time on the machine to/from UTC Time but if you want to convert from say mountain to eastern then you'll have to either code something or get a 3rd party component.

  http://www.dotnet247.com/247reference/msgs/46/230600.aspx

  details what I think your looking to do and provides a possible (unverified way) of getting the timezone information which may if modified provide you with a way to do this.

  
  

• Rafal Struzyk

  I'm not sure what your exactly asking for here.

  If you want to store the date/time in a value which can be used to ensure that you can determine the actual time of say a transaction on a coordinated basis then Universal time is what you would be looking at. Then you can convert between local and universal time with ease. So they see local time on there applications but you are actually storing Universal Time behind the scenes.

  Label1.Text = Now.ToUniversalTime
  Label2.Text = Now.ToLocalTime
  Label3.Text = UTCNow

  http://msdn2.microsoft.com/en-us/library/497a406b(vs.80).aspx

  
  

• apclogan

  If you store everything in Universal Time, then use the ToLocalTime which will display the local time on that machine.

  The specific time zone for that machine is set in control panel.

  ToLocalTime
  http://msdn2.microsoft.com/en-us/library/system.datetime.tolocaltime.aspx

  Converts the value of the current DateTime object to local time.
  In the documentation for the function it states "The conversion also takes into account the daylight saving time rule that applies to the time represented by the current DateTime object. "

  So it sounds like Daylight savings is resolved automatically by this function.

  
  
• Easy way to work with Time Zones