create date object by hours and minutes












0















I want to setup a setTimeout function and need to calculate the seconds for the callback. Let's say I want to execute a function at 12:00 (HH-MM) I have to calculate the timespan up to this time. If the time has already passed the next day is relevant.



I get the current date time with new Date()



I know I can calculate the timespan in seconds by using



const difference = dateTimeOne.getTime() - dateTimeTwo.getTime();
const differenceInSeconds = difference / 1000;


Is there a way creating a second date object by passing in the hours and minutes or do I have to calculate it on my own?



An example would be new Date('12:45')










share|improve this question



























    0















    I want to setup a setTimeout function and need to calculate the seconds for the callback. Let's say I want to execute a function at 12:00 (HH-MM) I have to calculate the timespan up to this time. If the time has already passed the next day is relevant.



    I get the current date time with new Date()



    I know I can calculate the timespan in seconds by using



    const difference = dateTimeOne.getTime() - dateTimeTwo.getTime();
    const differenceInSeconds = difference / 1000;


    Is there a way creating a second date object by passing in the hours and minutes or do I have to calculate it on my own?



    An example would be new Date('12:45')










    share|improve this question

























      0












      0








      0








      I want to setup a setTimeout function and need to calculate the seconds for the callback. Let's say I want to execute a function at 12:00 (HH-MM) I have to calculate the timespan up to this time. If the time has already passed the next day is relevant.



      I get the current date time with new Date()



      I know I can calculate the timespan in seconds by using



      const difference = dateTimeOne.getTime() - dateTimeTwo.getTime();
      const differenceInSeconds = difference / 1000;


      Is there a way creating a second date object by passing in the hours and minutes or do I have to calculate it on my own?



      An example would be new Date('12:45')










      share|improve this question














      I want to setup a setTimeout function and need to calculate the seconds for the callback. Let's say I want to execute a function at 12:00 (HH-MM) I have to calculate the timespan up to this time. If the time has already passed the next day is relevant.



      I get the current date time with new Date()



      I know I can calculate the timespan in seconds by using



      const difference = dateTimeOne.getTime() - dateTimeTwo.getTime();
      const differenceInSeconds = difference / 1000;


      Is there a way creating a second date object by passing in the hours and minutes or do I have to calculate it on my own?



      An example would be new Date('12:45')







      javascript date datetime






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 22 '18 at 13:32









      MHComputechMHComputech

      10713




      10713
























          3 Answers
          3






          active

          oldest

          votes


















          2

















          var minutes = 42;

          for (var hours = 1; hours < 24; hours+=3) {
          var newAlarm = setAlarm(hours, minutes);
          out(newAlarm)
          }



          function out(date) {
          var now = new Date()

          if (date.getDate() != now.getDate()) {
          console.log('tomorrow: ' + date.getHours() + ":" + date.getMinutes())
          } else {
          console.log('today: ' + date.getHours() + ":" + date.getMinutes())
          }
          }
          function setAlarm(hours, minutes) {
          var now = new Date();
          var dateTarget = new Date();

          dateTarget.setHours(hours)
          dateTarget.setMinutes(minutes)
          dateTarget.setSeconds(0)
          dateTarget.setMilliseconds(0)

          if (dateTarget < now) {
          dateTarget.setDate(dateTarget.getDate()+1)
          }
          return dateTarget
          }





          See this Documentation on MDN






          share|improve this answer


























          • almost, if the time has already passed I have to set the day to next day. That's why I asked if I have to do it manually

            – MHComputech
            Nov 22 '18 at 13:42



















          2














          You can manipulate the date and then check whether it is in the past. If it is, just add another day.






          const d = new Date();
          d.setHours(12);
          d.setMinutes(0);
          d.setSeconds(0);
          d.setMilliseconds(0);

          if (d < new Date()) {
          d.setDate(d.getDate() + 1);
          }

          console.log(d);








          share|improve this answer

































            -1














            It's possible, but you need to provide the whole time string (which we can get from calling Date() and add the missing part):



            const time = '12:45'
            const current = new Date()
            const dateTimeTwo = new Date(`${current.getFullYear()}-${current.getMonth()+1}-${current.getDate()} ${time}`)





            share|improve this answer
























            • thanks for your answer. I think @HerrSerker provided a cleaner solution. But as I mentioned I have to consider the next day if the time has already passed

              – MHComputech
              Nov 22 '18 at 13:48











            • Note that you are not using a valid datetime string which will fail in certain browsers (e.g. Safari).

              – str
              Nov 22 '18 at 13:58











            • That's right, sorry. @str's solution is the correct one.

              – Bitcze
              Nov 22 '18 at 14:02













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            3 Answers
            3






            active

            oldest

            votes








            3 Answers
            3






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            2

















            var minutes = 42;

            for (var hours = 1; hours < 24; hours+=3) {
            var newAlarm = setAlarm(hours, minutes);
            out(newAlarm)
            }



            function out(date) {
            var now = new Date()

            if (date.getDate() != now.getDate()) {
            console.log('tomorrow: ' + date.getHours() + ":" + date.getMinutes())
            } else {
            console.log('today: ' + date.getHours() + ":" + date.getMinutes())
            }
            }
            function setAlarm(hours, minutes) {
            var now = new Date();
            var dateTarget = new Date();

            dateTarget.setHours(hours)
            dateTarget.setMinutes(minutes)
            dateTarget.setSeconds(0)
            dateTarget.setMilliseconds(0)

            if (dateTarget < now) {
            dateTarget.setDate(dateTarget.getDate()+1)
            }
            return dateTarget
            }





            See this Documentation on MDN






            share|improve this answer


























            • almost, if the time has already passed I have to set the day to next day. That's why I asked if I have to do it manually

              – MHComputech
              Nov 22 '18 at 13:42
















            2

















            var minutes = 42;

            for (var hours = 1; hours < 24; hours+=3) {
            var newAlarm = setAlarm(hours, minutes);
            out(newAlarm)
            }



            function out(date) {
            var now = new Date()

            if (date.getDate() != now.getDate()) {
            console.log('tomorrow: ' + date.getHours() + ":" + date.getMinutes())
            } else {
            console.log('today: ' + date.getHours() + ":" + date.getMinutes())
            }
            }
            function setAlarm(hours, minutes) {
            var now = new Date();
            var dateTarget = new Date();

            dateTarget.setHours(hours)
            dateTarget.setMinutes(minutes)
            dateTarget.setSeconds(0)
            dateTarget.setMilliseconds(0)

            if (dateTarget < now) {
            dateTarget.setDate(dateTarget.getDate()+1)
            }
            return dateTarget
            }





            See this Documentation on MDN






            share|improve this answer


























            • almost, if the time has already passed I have to set the day to next day. That's why I asked if I have to do it manually

              – MHComputech
              Nov 22 '18 at 13:42














            2












            2








            2










            var minutes = 42;

            for (var hours = 1; hours < 24; hours+=3) {
            var newAlarm = setAlarm(hours, minutes);
            out(newAlarm)
            }



            function out(date) {
            var now = new Date()

            if (date.getDate() != now.getDate()) {
            console.log('tomorrow: ' + date.getHours() + ":" + date.getMinutes())
            } else {
            console.log('today: ' + date.getHours() + ":" + date.getMinutes())
            }
            }
            function setAlarm(hours, minutes) {
            var now = new Date();
            var dateTarget = new Date();

            dateTarget.setHours(hours)
            dateTarget.setMinutes(minutes)
            dateTarget.setSeconds(0)
            dateTarget.setMilliseconds(0)

            if (dateTarget < now) {
            dateTarget.setDate(dateTarget.getDate()+1)
            }
            return dateTarget
            }





            See this Documentation on MDN






            share|improve this answer


















            var minutes = 42;

            for (var hours = 1; hours < 24; hours+=3) {
            var newAlarm = setAlarm(hours, minutes);
            out(newAlarm)
            }



            function out(date) {
            var now = new Date()

            if (date.getDate() != now.getDate()) {
            console.log('tomorrow: ' + date.getHours() + ":" + date.getMinutes())
            } else {
            console.log('today: ' + date.getHours() + ":" + date.getMinutes())
            }
            }
            function setAlarm(hours, minutes) {
            var now = new Date();
            var dateTarget = new Date();

            dateTarget.setHours(hours)
            dateTarget.setMinutes(minutes)
            dateTarget.setSeconds(0)
            dateTarget.setMilliseconds(0)

            if (dateTarget < now) {
            dateTarget.setDate(dateTarget.getDate()+1)
            }
            return dateTarget
            }





            See this Documentation on MDN






            var minutes = 42;

            for (var hours = 1; hours < 24; hours+=3) {
            var newAlarm = setAlarm(hours, minutes);
            out(newAlarm)
            }



            function out(date) {
            var now = new Date()

            if (date.getDate() != now.getDate()) {
            console.log('tomorrow: ' + date.getHours() + ":" + date.getMinutes())
            } else {
            console.log('today: ' + date.getHours() + ":" + date.getMinutes())
            }
            }
            function setAlarm(hours, minutes) {
            var now = new Date();
            var dateTarget = new Date();

            dateTarget.setHours(hours)
            dateTarget.setMinutes(minutes)
            dateTarget.setSeconds(0)
            dateTarget.setMilliseconds(0)

            if (dateTarget < now) {
            dateTarget.setDate(dateTarget.getDate()+1)
            }
            return dateTarget
            }





            var minutes = 42;

            for (var hours = 1; hours < 24; hours+=3) {
            var newAlarm = setAlarm(hours, minutes);
            out(newAlarm)
            }



            function out(date) {
            var now = new Date()

            if (date.getDate() != now.getDate()) {
            console.log('tomorrow: ' + date.getHours() + ":" + date.getMinutes())
            } else {
            console.log('today: ' + date.getHours() + ":" + date.getMinutes())
            }
            }
            function setAlarm(hours, minutes) {
            var now = new Date();
            var dateTarget = new Date();

            dateTarget.setHours(hours)
            dateTarget.setMinutes(minutes)
            dateTarget.setSeconds(0)
            dateTarget.setMilliseconds(0)

            if (dateTarget < now) {
            dateTarget.setDate(dateTarget.getDate()+1)
            }
            return dateTarget
            }






            share|improve this answer














            share|improve this answer



            share|improve this answer








            edited Nov 22 '18 at 14:02

























            answered Nov 22 '18 at 13:37









            yunzenyunzen

            21.2k84979




            21.2k84979













            • almost, if the time has already passed I have to set the day to next day. That's why I asked if I have to do it manually

              – MHComputech
              Nov 22 '18 at 13:42



















            • almost, if the time has already passed I have to set the day to next day. That's why I asked if I have to do it manually

              – MHComputech
              Nov 22 '18 at 13:42

















            almost, if the time has already passed I have to set the day to next day. That's why I asked if I have to do it manually

            – MHComputech
            Nov 22 '18 at 13:42





            almost, if the time has already passed I have to set the day to next day. That's why I asked if I have to do it manually

            – MHComputech
            Nov 22 '18 at 13:42













            2














            You can manipulate the date and then check whether it is in the past. If it is, just add another day.






            const d = new Date();
            d.setHours(12);
            d.setMinutes(0);
            d.setSeconds(0);
            d.setMilliseconds(0);

            if (d < new Date()) {
            d.setDate(d.getDate() + 1);
            }

            console.log(d);








            share|improve this answer






























              2














              You can manipulate the date and then check whether it is in the past. If it is, just add another day.






              const d = new Date();
              d.setHours(12);
              d.setMinutes(0);
              d.setSeconds(0);
              d.setMilliseconds(0);

              if (d < new Date()) {
              d.setDate(d.getDate() + 1);
              }

              console.log(d);








              share|improve this answer




























                2












                2








                2







                You can manipulate the date and then check whether it is in the past. If it is, just add another day.






                const d = new Date();
                d.setHours(12);
                d.setMinutes(0);
                d.setSeconds(0);
                d.setMilliseconds(0);

                if (d < new Date()) {
                d.setDate(d.getDate() + 1);
                }

                console.log(d);








                share|improve this answer















                You can manipulate the date and then check whether it is in the past. If it is, just add another day.






                const d = new Date();
                d.setHours(12);
                d.setMinutes(0);
                d.setSeconds(0);
                d.setMilliseconds(0);

                if (d < new Date()) {
                d.setDate(d.getDate() + 1);
                }

                console.log(d);








                const d = new Date();
                d.setHours(12);
                d.setMinutes(0);
                d.setSeconds(0);
                d.setMilliseconds(0);

                if (d < new Date()) {
                d.setDate(d.getDate() + 1);
                }

                console.log(d);





                const d = new Date();
                d.setHours(12);
                d.setMinutes(0);
                d.setSeconds(0);
                d.setMilliseconds(0);

                if (d < new Date()) {
                d.setDate(d.getDate() + 1);
                }

                console.log(d);






                share|improve this answer














                share|improve this answer



                share|improve this answer








                edited Nov 22 '18 at 14:00

























                answered Nov 22 '18 at 13:54









                strstr

                17.9k65679




                17.9k65679























                    -1














                    It's possible, but you need to provide the whole time string (which we can get from calling Date() and add the missing part):



                    const time = '12:45'
                    const current = new Date()
                    const dateTimeTwo = new Date(`${current.getFullYear()}-${current.getMonth()+1}-${current.getDate()} ${time}`)





                    share|improve this answer
























                    • thanks for your answer. I think @HerrSerker provided a cleaner solution. But as I mentioned I have to consider the next day if the time has already passed

                      – MHComputech
                      Nov 22 '18 at 13:48











                    • Note that you are not using a valid datetime string which will fail in certain browsers (e.g. Safari).

                      – str
                      Nov 22 '18 at 13:58











                    • That's right, sorry. @str's solution is the correct one.

                      – Bitcze
                      Nov 22 '18 at 14:02


















                    -1














                    It's possible, but you need to provide the whole time string (which we can get from calling Date() and add the missing part):



                    const time = '12:45'
                    const current = new Date()
                    const dateTimeTwo = new Date(`${current.getFullYear()}-${current.getMonth()+1}-${current.getDate()} ${time}`)





                    share|improve this answer
























                    • thanks for your answer. I think @HerrSerker provided a cleaner solution. But as I mentioned I have to consider the next day if the time has already passed

                      – MHComputech
                      Nov 22 '18 at 13:48











                    • Note that you are not using a valid datetime string which will fail in certain browsers (e.g. Safari).

                      – str
                      Nov 22 '18 at 13:58











                    • That's right, sorry. @str's solution is the correct one.

                      – Bitcze
                      Nov 22 '18 at 14:02
















                    -1












                    -1








                    -1







                    It's possible, but you need to provide the whole time string (which we can get from calling Date() and add the missing part):



                    const time = '12:45'
                    const current = new Date()
                    const dateTimeTwo = new Date(`${current.getFullYear()}-${current.getMonth()+1}-${current.getDate()} ${time}`)





                    share|improve this answer













                    It's possible, but you need to provide the whole time string (which we can get from calling Date() and add the missing part):



                    const time = '12:45'
                    const current = new Date()
                    const dateTimeTwo = new Date(`${current.getFullYear()}-${current.getMonth()+1}-${current.getDate()} ${time}`)






                    share|improve this answer












                    share|improve this answer



                    share|improve this answer










                    answered Nov 22 '18 at 13:46









                    BitczeBitcze

                    512




                    512













                    • thanks for your answer. I think @HerrSerker provided a cleaner solution. But as I mentioned I have to consider the next day if the time has already passed

                      – MHComputech
                      Nov 22 '18 at 13:48











                    • Note that you are not using a valid datetime string which will fail in certain browsers (e.g. Safari).

                      – str
                      Nov 22 '18 at 13:58











                    • That's right, sorry. @str's solution is the correct one.

                      – Bitcze
                      Nov 22 '18 at 14:02





















                    • thanks for your answer. I think @HerrSerker provided a cleaner solution. But as I mentioned I have to consider the next day if the time has already passed

                      – MHComputech
                      Nov 22 '18 at 13:48











                    • Note that you are not using a valid datetime string which will fail in certain browsers (e.g. Safari).

                      – str
                      Nov 22 '18 at 13:58











                    • That's right, sorry. @str's solution is the correct one.

                      – Bitcze
                      Nov 22 '18 at 14:02



















                    thanks for your answer. I think @HerrSerker provided a cleaner solution. But as I mentioned I have to consider the next day if the time has already passed

                    – MHComputech
                    Nov 22 '18 at 13:48





                    thanks for your answer. I think @HerrSerker provided a cleaner solution. But as I mentioned I have to consider the next day if the time has already passed

                    – MHComputech
                    Nov 22 '18 at 13:48













                    Note that you are not using a valid datetime string which will fail in certain browsers (e.g. Safari).

                    – str
                    Nov 22 '18 at 13:58





                    Note that you are not using a valid datetime string which will fail in certain browsers (e.g. Safari).

                    – str
                    Nov 22 '18 at 13:58













                    That's right, sorry. @str's solution is the correct one.

                    – Bitcze
                    Nov 22 '18 at 14:02







                    That's right, sorry. @str's solution is the correct one.

                    – Bitcze
                    Nov 22 '18 at 14:02




















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