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QDate

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  • E Offline
    E Offline
    ELIF
    wrote on last edited by
    #1

    Hello I want to write program that calculates the time in milliseconds from 01.01.1970 to now.

    I try

    QDateTime::currentMSecsSinceEpoch() - QDateTime(QDate::currentDate()).toMSecsSinceEpoch()
    

    to calculate 1 day in Mseconds. I cant multiple it with days number since 1970.

    There has to be an easy way, I just havn't found it yet...

    Thank you.

    Christian EhrlicherC JonBJ 2 Replies Last reply
    0
    • E ELIF

      Hello I want to write program that calculates the time in milliseconds from 01.01.1970 to now.

      I try

      QDateTime::currentMSecsSinceEpoch() - QDateTime(QDate::currentDate()).toMSecsSinceEpoch()
      

      to calculate 1 day in Mseconds. I cant multiple it with days number since 1970.

      There has to be an easy way, I just havn't found it yet...

      Thank you.

      Christian EhrlicherC Offline
      Christian EhrlicherC Offline
      Christian Ehrlicher
      Lifetime Qt Champion
      wrote on last edited by
      #2

      @ELIF said in QDate:

      that calculates the time in milliseconds from 01.01.1970 to now.

      auto timeInMSecsSince1970 = QDateTime(QDate::currentDate()).toMSecsSinceEpoch()

      Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
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      1 Reply Last reply
      2
      • E ELIF

        Hello I want to write program that calculates the time in milliseconds from 01.01.1970 to now.

        I try

        QDateTime::currentMSecsSinceEpoch() - QDateTime(QDate::currentDate()).toMSecsSinceEpoch()
        

        to calculate 1 day in Mseconds. I cant multiple it with days number since 1970.

        There has to be an easy way, I just havn't found it yet...

        Thank you.

        JonBJ Offline
        JonBJ Offline
        JonB
        wrote on last edited by JonB
        #3

        @ELIF said in QDate:

        to calculate 1 day in Mseconds

        24 * 60 * 60 * 1000 ?

        I cant multiple it with days number since 1970.

        time(NULL) * 1000ULL ?

        Not saying you should not do it as @Christian-Ehrlicher as shown with Qt call, just saying this is not hard! :)

        1 Reply Last reply
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