How to format a UTC date as a YYYY-MM-DD hh mm ss string using NodeJS

Question

Using NodeJS  I want to format a Date into the following string format   var ts hms   new Date UTC   ts hms format   Y- m- d  H  M  S      How do I do that

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I think this actually answers your question   It is so annoying working with date time in javascript  After a few gray hairs I figured out that is was actually pretty simple   var date   new Date    var year   date getUTCFullYear    var month   date getUTCMonth    var day   date getUTCDate    var hours   date getUTCHours    var min   date getUTCMinutes    var sec   date getUTCSeconds     var ampm   hours  gt   12    pm     am   hours     hours   11    12   1    for 12 hour format  var str   month         day         year         hours         min         sec         ampm  var now utc    Date UTC str     Here is a fiddle

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Use the method provided in the Date object as follows   var ts hms   new Date     console log      ts hms getFullYear      -           0     ts hms getMonth     1   slice -2     -           0     ts hms getDate     slice -2                0    ts hms getHours    slice -2                0    ts hms getMinutes    slice -2                0    ts hms getSeconds    slice -2      It looks really dirty  but it should work fine with JavaScript core methods

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There s a library for conversion   npm install dateformat   Then write your requirement   var dateFormat   require  dateformat      Then bind the value   var day dateFormat new Date     yyyy-mm-dd h MM ss      see dateformat

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If you re using Node js  you re sure to have EcmaScript 5  and so Date has a toISOString method  You re asking for a slight modification of ISO8601   new Date   toISOString    gt   2012-11-04T14 51 06 157Z    So just cut a few things out  and you re set   new Date   toISOString      replace  T                 replace T with a space   replace                    delete the dot and everything after  gt   2012-11-04 14 55 45    Or  in one line  new Date   toISOString   replace  T        replace              ISO8601 is necessarily UTC  also indicated by the trailing Z on the first result   so you get UTC by default  always a good thing

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Easily readable and customisable way to get a timestamp in your desired format  without use of any library   function timestamp      function pad n   return n lt 10    0  n   n    d new Date     dash  -    colon       return d getFullYear   dash    pad d getMonth   1  dash    pad d getDate           pad d getHours    colon    pad d getMinutes    colon    pad d getSeconds         If you require time in UTC format  then just change the function calls  For example  getMonth  becomes  getUTCMonth

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For date formatting the most easy way is using moment lib  https   momentjs com   const moment   require  moment   const current   moment   utc   format  Y-M-D H M S

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I needed a simple formatting library without the bells and whistles of locale and language support  So I modified   http   www mattkruse com javascript date date js  and used it  See https   github com adgang atom-time blob master lib dateformat js  The documentation is pretty clear

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new Date   toString  yyyyMMddHHmmss          replace  T                 replace                   with  toString    This becomes in format      replace  T           replace T to     2017-01-15T         replace              for    13 50 16 1271   example  see var date and hour    x000D   x000D  var date  2017-01-15T13 50 16 1271  toString  yyyyMMddHHmmss    x000D                      replace  T               x000D                      replace              x000D       x000D                      var auxCopia date split       x000D                      date auxCopia 0   x000D                      var hour auxCopia 1   x000D   x000D  console log date   x000D  console log hour   x000D   x000D   x000D

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UPDATE 2017-03-29  Added date-fns  some notes on Moment and Datejs UPDATE 2016-09-14  Added SugarJS which seems to have some excellent date time functions     OK  since no one has actually provided an actual answer  here is mine   A library is certainly the best bet for handling dates and times in a standard way  There are lots of edge cases in date time calculations so it is useful to be able to hand-off the development to a library   Here is a list of the main Node compatible time formatting libraries    Moment js  thanks to Mustafa   A lightweight  4 3k  javascript date library for parsing  manipulating  and formatting dates  - Includes internationalization  calculations and relative date formats - Update 2017-03-29  Not quite so light-weight any more but still the most comprehensive solution  especially if you need timezone support  date-fns  added 2017-03-29  thanks to Fractalf  Small  fast  works with standard JS date objects  Great alternative to Moment if you don t need timezone support  SugarJS - A general helper library adding much needed features to JavaScripts built-in object types  Includes some excellent looking date time capabilities  strftime - Just what it says  nice and simple dateutil - This is the one I used to use before MomentJS node-formatdate TimeTraveller -  Time Traveller provides a set of utility methods to deal with dates  From adding and subtracting  to formatting  Time Traveller only extends date objects that it creates  without polluting the global namespace   Tempus  thanks to Dan D  - UPDATE  this can also be used with Node and deployed with npm  see the docs   There are also non-Node libraries    Datejs  thanks to Peter Olson  - not packaged in npm or GitHub so not quite so easy to use with Node - not really recommended as not updated since 2007

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Alternative  6233      Add the UTC offset to the local time then convert it to the desired format with the toLocaleDateString   method of the Date object      Using the current date time let now local   new Date    let now utc   new Date        Adding the UTC offset to create the UTC date time now utc setMinutes now utc getMinutes     now utc getTimezoneOffset        Specify the format you want let date format       date format year    numeric   date format month    numeric   date format day    2-digit   date format hour    numeric   date format minute    numeric   date format second    numeric       Printing the date time in UTC then local format console log  Date in UTC     now utc toLocaleDateString  us-EN   date format    console log  Date in LOC     now local toLocaleDateString  us-EN   date format      I m creating a date object defaulting to the local time  I m adding the UTC off-set to it  I m creating a date-formatting object  I m displaying the UTC date time in the desired format

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Here s a lightweight library simple-date-format I ve written  works both on node js and in the browser Install  Install with NPM  npm install  riversun simple-date-format  or  Load directly for browser     lt script src  quot https   cdn jsdelivr net npm  riversun simple-date-format lib simple-date-format js quot  gt  lt  script gt   Load Library  ES6  import SimpleDateFormat from  quot  riversun simple-date-format quot     CommonJS  node js   const SimpleDateFormat   require   riversun simple-date-format     Usage1 const date   new Date  2018 07 17 12 08 56    const sdf   new SimpleDateFormat    console log sdf formatWith  quot yyyy-MM-dd T HH mm ssXXX quot   date     to be  quot 2018-07-17T12 08 56 09 00 quot   Run on Pen Usage2 const date   new Date  2018 07 17 12 08 56    const sdf   new SimpleDateFormat  quot yyyy-MM-dd T HH mm ssXXX quot    console log sdf format date     to be  quot 2018-07-17T12 08 56 09 00 quot   Patterns for formatting https   github com riversun simple-date-format pattern-of-the-date

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I am using dateformat at Nodejs and angularjs  so good  install    npm install dateformat   dateformat --help   demo  var dateFormat   require  dateformat    var now   new Date        Basic usage dateFormat now   dddd  mmmm dS  yyyy  h MM ss TT       Saturday  June 9th  2007  5 46 21 PM     You can use one of several named masks dateFormat now   isoDateTime       2007-06-09T17 46 21        Or add your own dateFormat masks hammerTime    HH MM   Can  t touch this     dateFormat now   hammerTime       17 46  Can t touch this      You can also provide the date as a string dateFormat  Jun 9 2007    fullDate       Saturday  June 9  2007

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appHelper validateDates   function  start  end        var returnval   false       var fd   new Date start       var fdms   fd getTime        var ed   new Date end       var edms   ed getTime        var cd   new Date        var cdms   cd getTime         if  fdms  gt   edms            returnval   false          console log  step 1              else if  cdms  gt   edms            returnval   false          console log  step 2              else           returnval   true          console log  step 3              console log  vall   returnval      return returnval

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The javascript library sugar js  http   sugarjs com   has functions to format dates  Example   Date create   format   dd   MM   yyyy   hh   mm   ss   fff

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I have nothing against libraries in general  In this case a general purpose library seems overkill  unless other parts of the application process dates heavily   Writing small utility functions such as this is also a useful exercise for both beginning and accomplished programmers alike and can be a learning experience for the novices amongst us   function dateFormat  date  fstr  utc      utc   utc    getUTC     get     return fstr replace     YmdHMS  g  function  m        switch  m        case   Y   return date utc    FullYear          no leading zeros required     case   m   m   1   date utc    Month       break      case   d   m   date utc    Date       break      case   H   m   date utc    Hours       break      case   M   m   date utc    Minutes       break      case   S   m   date utc    Seconds       break      default  return m slice  1      unknown code  remove                add leading zero if required     return   0    m  slice  -2               dateFormat  new Date       Y- m- d  H  M  S   true  returns      2012-05-18 05 37 21

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Use x-date module which is one of sub-modules of x-class library     require  x-date          ---  new Date   format  yyyy-mm-dd HH MM ss        2016-07-17 18 12 37   new Date   format  ddd   yyyy-mm-dd HH MM ss         Sun   2016-07-17 18 12 51   new Date   format  dddd   yyyy-mm-dd HH MM ss       Sunday   2016-07-17 18 12 58   new Date   format  dddd ddSS of mmm   yy         Sunday 17thth  0300f Jul   16   new Date   format  dddd ddS  mmm   yy       Sunday 17th  Jul   16

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Check the code below and the link to MDN  x000D   x000D     var ts hms   new Date UTC      ts hms format   Y- m- d  H  M  S       exact format console log new Date   toISOString   replace  T        substring 0  19       other formats console log new Date   toUTCString    console log new Date   toLocaleString  en-US    console log new Date   toString    x000D   x000D   x000D

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new Date 2015 1 3 15 30  toLocaleString        gt  2015-02-03 15 30 00

[javascript] How to format a UTC date as a `YYYY-MM-DD hh:mm:ss` string using NodeJS?

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