CODEWITHSUNDEEP
javascriptdatetimemomentjsdatetime-parsing
bluray
bluray

Reputation: 1953

Convert datetime to ISO format

I have a date in format dd.MM.yyyy HH:mm:ss and I need to convert it to ISO format, but it's not working correctly. Here is my code:

let date = '12.01.2016 0:00:00'; //12 January 2016
let parsedDate = moment(date, 'dd.MM.yyyy HH:mm:ss')
console.log(parsedDate.toISOString()); //result is 2016-12-31T23:00:00.000Z

example2:

let date = '12.01.2016 0:00:00'; //12 January 2016
let parsedDate = new Date(date)
console.log(parsedDate.toISOString()); //result is 2016-11-30T23:00:00.000Z

Where is the problem? Why do I get different results?

Upvotes: 3

Views: 10154

Answers (4)

VincenzoC
VincenzoC

Reputation: 31482

Your format parameter is wrong, use 'DD.MM.YYYY H:mm:ss' instead.

There is no lowercase dd, use uppercase DD for day of month and use uppercase YYYY for year instead of lowercase yyyy.

Please note that toISOString():

Note that .toISOString() always returns a timestamp in UTC, even if the moment in question is in local mode. This is done to provide consistency with the specification for native JavaScript Date .toISOString(), as outlined in the ES2015 specification.

let date = '12.01.2016 0:00:00'; //12 January 2016
let parsedDate = moment(date, 'DD.MM.YYYY H:mm:ss')
console.log(parsedDate.toISOString());
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.19.1/moment.min.js"></script>

Upvotes: 3

Rick
Rick

Reputation: 3451

I just tried using moment.js and it seems you used a mask as you'd use in C# for example. Moment.js uses capitals in the date parts.

let date = '12.01.2016 0:00:00'; //12 January 2016
let parsedDate = moment(date, 'DD.MM.YYYY HH:mm:ss');
console.log(parsedDate.toISOString()); //result is 2016-01-11T23:00:00.000Z

The Date.parse() function requires another kind of input.

Upvotes: 1

Alexandru Pupsa
Alexandru Pupsa

Reputation: 1868

In the second example, the parsed date results in December 1, 2016 0:00:00 (GMT+1)

When you output toISOString() it gives you the GMT time, which is 1 hour earlier, hence the November 30, 2016 23:00:00

Upvotes: 0

St&#233;phane Ammar
St&#233;phane Ammar

Reputation: 1454

Look this link https://www.w3schools.com/js/js_date_formats.asp , paragraph 'ISO Dates'

Omitting T or Z in a date-time string can give different result in different browser.

Upvotes: 0

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