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I am creating a web chat application using vb. I have got the chat system to work as messages are sent and relayed back to the clients. But there was something i noticed but never thought it would be a problem. I am from England and the chat application is sitting on servers in America and noticed when the message displayed the time, the times were situated in American time zones. How would i go about setting the timezones that will correspond to there country timezones.
So if the message display 17:00 American time, then the message sent to England should display 12:00 English time.
All messages are stored in SQL Server Database. And in Table it take the server time.But sertime is India 
Posted 27-Jan-13 18:13pm

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Solution 1

You could start by using getutcdate() (or the C# equivalent DateTime.UtcNow) in your table rather than getdate()
Then you need a timezone table which stores offset (0:english time ), -6:New York, etc...) from UTC
User should have a timezoneId property they can select depending where they are
Then when displaying you calculate the UTCtime of your message + the offset and you're done

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