JavaScript Temporal Duration compare()
Example
const d1 = Temporal.Duration.from({ hours:2, minutes:30 });
const d2 = Temporal.Duration.from({ hours:1, minutes:30 });
let result = Temporal.Duration.compare(d1, d2);
Try it Yourself »
Description
The compare() method returns -1, 0, or 1 indicating if the first duration
is shorter, equal to, or longer than the second.
Syntax
Temporal.Duration.compare(duration1, duration2)
Parameters
| Parameter | Description |
| duration1 | The first duration to compare. |
| duration2 | The second duration to compare. |
Return Value
| Type | Description |
| Number | -1 if duration1 is shorter than duration2. 0 if they are equal. 1 if duration1 is longer than duration2. |
Note
The equals() method compares only values of the same type.
Other Temporal types must be converted before comparison.
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>
