Incorrect handling of Unix timestamps in AngularJS

I'm facing an issue with timestamps. Let me explain - I have a timestamp coded as 1378028575, which corresponds to Sun, 01 Sep 2013 09:42:55 GMT according to this website. The problem arises when I attempt to format this timestamp using Angular's date function. Instead of displaying the expected date and time, it returns Jan 17, 1970 2:47:08 AM when using this format: {{'1378028575' | date:'medium'}}. It seems like there is a discrepancy between the actual timestamp value and how Angular interprets it. Any insights on why this might be happening or what I could be doing incorrectly?

javascriptunixangularjstimestamp

Answer №1

It's because you are using seconds instead of milliseconds.

new Date(1378028575)
Fri Jan 16 1970 23:47:08 GMT+0100 (CET)

new Date(1378028575000)
Sun Sep 01 2013 11:42:55 GMT+0200 (CEST)

This information is highlighted in the Angular documentation:

The date should be formatted either as a Date object, milliseconds (string or number), or various ISO 8601 datetime string formats (e.g. yyyy-MM-ddTHH:mm:ss.SSSZ and its shortened versions like yyyy-MM-ddTHH:mmZ, yyyy-MM-dd, or yyyyMMddTHHmmssZ). If no timezone is specified in the string input, the time will default to the local timezone.

Answer №2

The previous response was helpful, but there are some additional details to consider. If your timestamp is in seconds (not milliseconds) and you're working with Angular.js, you can utilize the following code snippet:

{{1378028575 * 1000 | date:'medium'}}

Understanding that converting seconds to milliseconds involves multiplying by 1000 is important. It's also worth noting that mathematical operations can be incorporated within date expressions in Angular.js.

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