The HTMLTimeElement.dateTime property is a DOMString that reflects the datetime HTML attribute, containing a machine-readable form of the element's date and time value.
The format of the string must follow one of the following HTML microsyntaxes:
| Microsyntax | Description | Examples |
|---|---|---|
| Valid month string |
YYYY-MM
|
2011-11, 2013-05
|
| Valid date string |
YYYY-MM-DD
| 1887-12-01 |
| Valid yearless date string |
MM-DD
| 11-12 |
| Valid time string |
HH:MMHH :MM:SSHH :MM:SS.mmm
|
23:5912:15:4712:15:52.998
|
| Valid local date and time string |
YYYY-MM-DD HH:MMYYYY -MM-DD HH:MM:SSYYYY -MM-DD HH:MM:SS.mmmYYYY -MM-DDTHH:MMYYYY -MM-DDTHH:MM:SSYYYY -MM-DDTHH:MM:SS.mmm
| 2013-12-25 11:12 |
| Valid time-zone offset string |
Z+HHMM+HH:MM-HHMM-HH:MM
| Z |
| Valid global date and time string | Any combination of a valid local date and time string followed by a valid time-zone offset string | 2013-12-25 11:12+0200 |
| Valid week string |
YYYY-WWW
| 2013-W46 |
| Four or more ASCII digits | YYYY |
2013, 0001
|
| Valid duration string |
PdDThHmMsSPdDThHmMs.XSPdDThHmMs.XXSPdDThHmMs.XXXSPThHmMsSPThHmMs.XSPThHmMs.XXSPThHmMs.XXXSw w dd hh mm ss
| P12DT7H12M13S |
dateTimeString = timeElt.dateTime; timeElt.dateTime = dateTimeString
// Assumes there is <time id="t"> element in the HTML
var t = document.getElementById("t");
t.dateTime = "6w 5h 34m 5s";
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard The definition of 'HTMLTimeElement' in that specification. | Living Standard | No change from HTML 5.1. |
| HTML 5.1 The definition of 'HTMLTimeElement' in that specification. | Recommendation | No change from HTML5. |
| HTML5 The definition of 'HTMLTimeElement' in that specification. | Recommendation | Initial definition. |
| Desktop | ||||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
| Basic support | 62 | Yes | 22 | No | 49
|
No |
| Mobile | |||||||
|---|---|---|---|---|---|---|---|
| Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | 62 | 62 | Yes | 22 | 49
|
No | ? |
HTMLTimeElement interface it belongs to.
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https://developer.mozilla.org/en-US/docs/Web/API/HTMLTimeElement/dateTime