ZonedDateTime getTimeZoneTransition()
Example
const z1 = Temporal.ZonedDateTime.from("2026-05-17T14:30:00[Europe/Oslo]");
const z2 = zoned.getTimeZoneTransition("next");
Try it Yourself »
Description
The getTimeZoneTransition() method returns a ZonedDateTime object
representing the closest instant after or before in which the time zone's UTC offset changes.
The getTimeZoneTransition() method does not change the original
ZonedDateTime.
Syntax
zoneddatetime.getTimeZoneTransition(direction)
Parameters
| Parameter | Description |
| direction | Must be "next" or "previous". |
Return Value
| Type | Description |
| Object | A ZonedDateTime object representing the closest instant after or before in which the time zone's UTC offset changes. |
Browser Support
Temporal is a major update to the JavaScript standard (TC39).
It is currently fully supported in Chrome, Edge, and Firefox, and is expected to reach full availability across browsers before the summer of 2026.
| Chrome 144 |
Edge 144 |
Firefox 139 |
Safari |
Opera |
| Jan 2026 | Jan 2026 | May 2025 | 🚫 | 🚫 |
Opera and Safari Support
Opera support will probably appear 1-3 browser cycles after Chromium, which often means a few months later.
The implementation is actively in development and can be tested today in Safari Technology Preview by enabling the --use-temporal runtime flag.
Polyfill
Until Opera and Safari supports Temporal natively, you can use the official polyfill:
<script
src="https://cdn.jsdelivr.net/npm/@js-temporal/polyfill/dist/index.umd.js">
</script>
