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Editorial Team
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Asked: 2026-06-08T06:50:02+00:00

Need to convert this timestamp (001281379300724) to YYYY-MM-DD hh:mm:ss format in SQL Server, if

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Need to convert this timestamp (001281379300724) to YYYY-MM-DD hh:mm:ss format in SQL Server, if possible. Any suggestions?

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1 Answer

  1. Editorial Team

    This presumes the timestamp is ms since UNIX epoch. It only converts to the nearest second, but you could add ms to it(see below). It has to use two steps since dateadd requires an int. First add minutes by dividing by 60000, then add seconds. 

    DECLARE @yournum bigint
SET @yournum = 1281379300724     
SELECT DATEADD(ss, (@yournum / 1000)%60 , (DATEADD(mi, @yournum/1000/60, '19700101')))

    Gives 

     2010-08-09 18:41:40.000

    To get ms precision: (yuck, probably a better way)

    DECLARE @yournum bigint
SET @yournum = 1281379300724     
SELECT DATEADD(ms, (@yournum%1000),DATEADD(ss, (@yournum / 1000)%60 , (DATEADD(mi, @yournum/1000/60, '19700101'))))

    Gives

    2010-08-09 18:41:40.723
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