# Date-time format in json?
**URL:** https://meta.discourse.org/t/date-time-format-in-json/133464
**Category:** Development
**Created:** [November 15, 2019, 8:41am UTC](https://meta.discourse.org/t/date-time-format-in-json/133464 "2019-11-15T08:41:18Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@edisonking](https://meta.discourse.org/u/edisonking)
#### Post date: [November 15, 2019, 8:41am UTC](https://meta.discourse.org/t/date-time-format-in-json/133464/1 "2019-11-15T08:41:18Z")
I got some json by using discourse api. There are some fields about datetime. like this:
```
"created_at": "2019-07-24T12:25:02.016Z",
"last_posted_at": "2019-07-25T06:21:58.328Z",
```
what the ‘T’ and ‘Z’ stand for in this format? is there any tool to parse it? I need to do some math manipulation about it.
---
### Author:  [@zogstrip](https://meta.discourse.org/u/zogstrip)
#### Post date: [November 15, 2019, 8:48am UTC](https://meta.discourse.org/t/date-time-format-in-json/133464/2 "2019-11-15T08:48:36Z")
It’s a standard date time format and pretty much every programming language should have support for parsing it.
> **[ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)**
>
> 2026-06-01T10:38:57+00:00 UTC+00:00
> ISO 8601 is an international standard covering the worldwide exchange and communication of date and time-related data. It is maintained by the International Organization for Standardization (ISO) and was first published in 1988, with updates in 1991, 2000, 2004, and 2019, and an amendment in 2022. The standard provides a well-defined, unambiguous method of representing calendar dates and times in worldwide communications, especially to avoid misinterpreting nu...