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Asked: 2026-05-11T17:16:47+00:00

We’re using an old application that stores dates in C / Unix format. C

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We’re using an old application that stores dates in C / Unix format. C time is basically the number of seconds since Jan 1st, 1970. The dates are stored as an integer in a SQL Server database. I am writing a view for a report that uses these dates.

So far, I’m converting from the UNIX time to a native datetime with:

DateAdd(s,3600+unix_time,'1/1/1970')

The 3600 is to convert from UTC to our local GMT+1 timezone. This is accurate in the winter, but in the summer it’s one hour off due to daylight savings time.

Is there a built-in way to convert from UTC to local time in SQL Server?

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1 Answer

  1. Editorial Team

    Instead of 3600, you’ll want to do DateDiff(s, getutcdate(), getdate())+unix_time, which will give you the correct offset from the UTC time.

    Cheers,
    Eric

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