spacetime
figure-out dates across timezones
Timezone math without bundling timezone data.
When to choose it: You need timezone calculations but want to avoid shipping large tz datasets.
- + Built-in timezones, no data files
- + Immutable
- - Smaller community
- - Not tree-shakable
- Latest version
- 7.12.1
- Monthly downloads
- 1,302,856
- GitHub stars
- 4,109
- Minified + gzip
- 17.3 kB
- Dependencies
- 0
- License
- Apache-2.0
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Data from npm, Bundlephobia and GitHub. Last updated 2026-06-02.