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Time stamp with microsecond resolution

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  • V Offline
    V Offline
    valeria70
    wrote on last edited by
    #1

    Hi all,
    I need to get the elapsed Time from the epoch in microsecond. I see is present a function qint64 QDateTime::currentMSecsSinceEpoch () that returns the time in millisecond. Is present a similar function that returns the time in microseconds?

    Thanks

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    • A Offline
      A Offline
      Asperamanca
      wrote on last edited by
      #2

      qint64 QElapsedTimer::nsecsElapsed () const

      How precise the output is depends on the platform, though.

      PS: Not exactly what you asked for, but the closest thing I found.

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      • V Offline
        V Offline
        valeria70
        wrote on last edited by
        #3

        Ok Thanks,

        I have already seen this function but returns the number of nanoseconds from the start of QTimer.
        I need the number of microsecond form the epoch that in the function QDateTime::currentMSecsSinceEpoch () is 1/01/1970 ( in my case could be set to another date)..

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        • A Offline
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          Asperamanca
          wrote on last edited by
          #4

          If it's not really important what the start time is (as long as it's some fixed point in time), you could start a QElapsedTimer at application start, and measure the nsecs from there. But I do not know your use case, so I can't really advise.

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