How to format a date in JavaScript

Given a Date:

const date = new Date('July 22, 2018 07:22:13')

There are many ways to create a string that represents the date.

There are some that come with the program. I’ll list them all and add a comment to show a sample output.

date.toString()
// "Sun Jul 22 2018 07:22:13 GMT+0200 (Central European Summer Time)"
date.toTimeString() //"07:22:13 GMT+0200 (Central European Summer Time)"
date.toUTCString() //"Sun, 22 Jul 2018 05:22:13 GMT"
date.toDateString() //"Sun Jul 22 2018"
date.toISOString() //"2018-07-22T05:22:13.000Z" (ISO 8601 format)
date.toLocaleString() //"22/07/2018, 07:22:13"
date.toLocaleTimeString()	//"07:22:13"

There are other methods that you can use to get the same value, but you don’t have to limit yourself to these. You can also use lower-level methods to get any result you want.

date.getDate() //22
date.getDay() //0 (0 means sunday, 1 means monday..)
date.getFullYear() //2018
date.getMonth() //6 (starts from 0)
date.getHours() //7
date.getMinutes() //22
date.getSeconds() //13
date.getMilliseconds() //0 (not specified)
date.getTime() //1532236933000
date.getTimezoneOffset() //-120 (will vary depending on where you are and when you check - this is CET during the summer). Returns the timezone difference expressed in minutes

These depend on your computer’s current timezone. You can use the UTC version of these methods to return the UTC value instead of the values that have been adjusted to your current timezone.

date.getUTCDate() //22
date.getUTCDay() //0 (0 means sunday, 1 means monday..)
date.getUTCFullYear() //2018
date.getUTCMonth() //6 (starts from 0)
date.getUTCHours() //5 (not 7 like above)
date.getUTCMinutes() //22
date.getUTCSeconds() //13
date.getUTCMilliseconds() //0 (not specified)

 

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