subtract time from date - moment js

Question

I have for instance this datetime    01 20 00 06-26-2014   and I want to subtract a time like this   00 03 15   after that I d like to format the result like this   3 hours and 15 minutes earlier   How can I do that using moment js    edit  I tried   var time   moment   00 03 15     var date   moment   2014-06-07 09 22 06      date subtract  time      but the result is the same as date  Thanks

User · Answer

Michael Richardson s solution is great  If you would like to subtract dates  because Google will point you here if you search for it   you could also say   var date1   moment   2014-06-07 00 03 00     var date2   moment   2014-06-07 09 22 00      differenceInMs   date2 diff date1      diff yields milliseconds duration   moment duration differenceInMs      moment duration accepts ms differenceInMinutes   duration asMinutes       if you would like to have the output 559

User · Answer

You can create a much cleaner implementation with Moment js Durations  No manual parsing necessary    x000D   x000D  var time   moment duration  00 03 15    x000D  var date   moment  2014-06-07 09 22 06    x000D  date subtract time   x000D      MomentRocks   text date format    x000D   lt script src  https   ajax googleapis com ajax libs jquery 1 11 1 jquery min js  gt  lt  script gt  x000D   lt script src    cdnjs cloudflare com ajax libs moment js 2 8 4 moment js  gt  lt  script gt  x000D   lt span id  MomentRocks  gt  lt  span gt  x000D   x000D   x000D

User · Answer

I use moment js http   momentjs com   var start   moment StartTimeString  toDate   getTime    var end   moment EndTimeString  toDate   getTime    var timespan   end - start  var duration   moment timespan   var output   duration format  YYYY-MM-DDTHH mm ss

User · Answer

There is a simple function subtract which moment library gives us to subtract time from some time  Using it is also very simple   moment Date now    subtract 7   days       This will subtract 7 days from current time moment Date now    subtract 3   d       This will subtract 3 days from current time    You can do this for days  years  months  hours  minutes  seconds   You can also subtract multiple things simulatneously    You can chain it like this  moment Date now    subtract 3   d   subtract 5   h       This will subtract 3 days and 5 hours from current time    You can also use it as object literal moment Date now    subtract  days 3  hours 5       This will subtract 3 days and 5 hours from current time   Hope this helps

User · Answer

I might be missing something in your question here    but from what I can gather  by using the subtract method this should be what you re looking to do   var timeStr    00 03 15       timeStr   timeStr split        var h   timeStr 1       m   timeStr 2    var newTime   moment  01 20 00 06-26-2014        subtract   hours   h   minutes   m        format  hh mm     var str   h     hours and     m     minutes earlier      newTime   console log str      3 hours and 15 minutes earlier  10 05    x000D   x000D    document  ready function        x000D       var timeStr    00 03 15   x000D          timeStr   timeStr split       x000D   x000D      var h   timeStr 1   x000D          m   timeStr 2   x000D   x000D      var newTime   moment  01 20 00 06-26-2014   x000D           subtract   hours   h   minutes   m   x000D           format  hh mm    x000D   x000D      var str   h     hours and     m     minutes earlier      newTime  x000D   x000D          new-time   html str   x000D     x000D   lt script src  https   ajax googleapis com ajax libs jquery 1 11 1 jquery min js  gt  lt  script gt  x000D   lt script src  https   cdnjs cloudflare com ajax libs moment js 2 9 0 moment min js  gt  lt  script gt  x000D   x000D   x000D   lt p id  new-time  gt  lt  p gt  x000D   x000D   x000D

User · Answer

Moment subtract does not support an argument of type Moment - documentation   moment   subtract String  Number   moment   subtract Number  String      2 0 0 moment   subtract String  String      2 7 0 moment   subtract Duration      1 6 0 moment   subtract Object     The simplest solution is to specify the time delta as an object      Assumes string is hh mm ss var myString    03 15 00       myStringParts   myString split           hourDelta   myStringParts 0       minuteDelta   myStringParts 1     date subtract   hours  hourDelta  minutes  minuteDelta    date toString      - gt   Sat Jun 07 2014 06 07 06 GMT 0100

[javascript] subtract time from date - moment js

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