@js-temporal/polyfill
Polyfill for Temporal (https://github.com/tc39/proposal-temporal), an ECMA TC39 Stage 3 proposal
npm says
6,890,255
per week
Every tarball fetch: mirrors, scanners, CI and people.
real installs
high confidence≈ 6.89M
per week
Mirror spikes and crawlers removed. CI and dependency installs still count, so this is not a head count.
noise under 1% of npm's count, so nearly all of it counts. noise real installs
Why this estimate
With JavaScript on, this lists what the filter found for this package.
Snapshot from the daily build of Nov 6, 2026, last 7 days of npm data. With JavaScript on, this page recomputes it live from the npm API.
How many people use @js-temporal/polyfill?
npm counted 6,890,255 downloads of @js-temporal/polyfill in the last 7 days. Nobody can count people exactly, npm included: it does not record who downloaded what. After removing mirror spikes and crawlers, about 6.89M look like real installs. At this scale most of them come from CI, builds and other packages that depend on @js-temporal/polyfill, so the number of people behind them is far smaller.
Is @js-temporal/polyfill still maintained?
Probably not actively: there has been no release in over a year, though that can also mean it is simply finished. The latest version, 0.5.1, came out on Mar 31, 2025. There were no stable releases in the last 12 months. It was first published on Jun 8, 2021. npm lists 3 maintainers.
Is @js-temporal/polyfill still used?
Downloads with publish spikes removed are up 231% over 3 months and up 1,535% over 11 months. For scale, the median of the 269 packages we track, which lean towards today's most downloaded, is up 157% over 11 months, so this one is ahead of that. Last week, 100% of downloads above the crawler floor were on major version 0, the latest one; the most used single version was 0.5.1, with 94%. Weekdays get 1.3× the downloads of weekends, which fits people at work, though CI follows the same rhythm. Crawlers account for about 66 downloads a week, roughly 6 per version.
How the estimate works
- Cut the spike every new version gets from mirrors in its first days.
- Subtract the flat floor robots download from every version each week.
- Show what is left as a range, with a confidence level. It still includes CI and dependency installs, so it is not a count of people.