How to calculate number of days between two dates

Question

I have two input dates taking from Date Picker control  I have selected start date 2 2 2012 and end date 2 7 2012  I have written following code for that   I should get result as 6 but I am getting 5   function SetDays invoker           var start    find   lt   StartWebDatePicker ClientID  gt    get value        var end    find   lt   EndWebDatePicker ClientID  gt    get value         var oneDay 1000   60   60   24      var difference ms   Math abs end getTime   - start getTime        var diffValue   Math round difference ms   oneDay       Can anyone tell me how I can get exact difference

User · Answer

Also you can use this code  moment  yourDateHere    YYYY-MM-DD   fromNow    This will calculate the difference between today and your provided date

User · Answer

Try     Difference in days  var diff    Math floor   start - end     86400000   alert diff

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If you are using moment js you can do it easily   var start   moment  2018-03-10    YYYY-MM-DD    var end   moment  2018-03-15    YYYY-MM-DD       Difference in number of days moment duration start diff end   asDays       Difference in number of weeks moment duration start diff end   asWeeks      If you want to find difference between a given date and current date in number of days  ignoring time   make sure to remove time from moment object of current date as below  moment   startOf  day     To find difference between a given date and current date in number of days  var given   moment  2018-03-10    YYYY-MM-DD    var current   moment   startOf  day       Difference in number of days moment duration given diff current   asDays

User · Answer

Try this Using moment js  Its quite easy to compute date operations in javascript   firstDate diff secondDate   days   false     true false for fraction value  Result will give you number of days in integer

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I made a quick re-usable function in ES6 using Moment js    x000D   x000D  const getDaysDiff    start date  end date  date format    YYYY-MM-DD     gt    x000D    const getDateAsArray    date    gt    x000D      return moment date split   D     date format   x000D      x000D    return getDateAsArray end date  diff getDateAsArray start date    days     1  x000D    x000D   x000D  console log getDaysDiff  2019-10-01    2019-10-30     x000D  console log getDaysDiff  2019 10 01    2019 10 30     x000D  console log getDaysDiff  2019 10-01    2019 10 30     x000D  console log getDaysDiff  2019 10 01    2019 10 30     x000D  console log getDaysDiff       2019      10   01    2019-10-30     x000D  console log getDaysDiff  2019-10-01-2019    2019-10-30     x000D  console log getDaysDiff  10-01-2019    10-30-2019    MM-DD-YYYY     x000D   x000D  console log getDaysDiff  10-01-2019    10-30-2019     x000D  console log getDaysDiff  10-01-2019    2019-10-30    MM-DD-YYYY     x000D   lt script src  https   cdnjs cloudflare com ajax libs moment js 2 24 0 moment js  gt  lt  script gt  x000D   x000D   x000D

User · Answer

This works for me    x000D   x000D  const from    2019-01-01   x000D  const to      2019-01-08   x000D   x000D  Math abs  x000D      moment from   YYYY-MM-DD   x000D         startOf  day   x000D         diff moment to   YYYY-MM-DD   startOf  day     days   x000D        1 x000D     x000D   x000D   x000D

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MVC i have two input text  1  number of day 2  datetime picker      Html TextBox  HeaderINVID   null  new    id    HeaderINVID    type    number    class    form-control   autocomplete    off   placeholder    Day Count          Html TextBox  HeaderINVDT   null  new   id    HeaderINVDT    class    form-control format-picker   autocomplete    off   placeholder     Date       javascipt  to calculate number from date use           HeaderINVID   bind  keyup   function  e            var INVID       HeaderINVID   val            var date   moment                add INVID   d                toDate                 HeaderINVDT   val moment date  format  YYYY-MM-DD               to calculate number of days between two dates use         HeaderINVDT   bind  change   function  e            var StDT   moment     HeaderINVDT   val    startOf  day            var NODT   moment   startOf  day                HeaderINVID   val StDT diff NODT   days              do not forget to add  http   momentjs com

User · Answer

http   momentjs com  or https   date-fns org   From Moment docs   var a   moment  2007  0  29    var b   moment  2007  0  28    a diff b   days         1   or to include the start   a diff b   days   1       2   Beats messing with timestamps and time zones manually   Depending on your specific use case  you can either   Use a b startOf  day   and or a b endOf  day   to force the diff to be inclusive or exclusive at the  ends   as suggested by  kotpal in the comments    Set third argument true to get a floating point diff which you can then Math floor  Math ceil or Math round as needed  Option 2 can also be accomplished by getting  seconds  instead of  days  and then dividing by 24 60 60

[javascript] How to calculate number of days between two dates

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