#UT1
Live, measured metrics for the hashtag #UT1 from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #ut1
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Day-by-day usage
measured · fosstodon.org (Mastodon public tags API) · fetched 2026-07-27 21:41 UTC0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · fosstodon.org (Mastodon public search API) · fetched 2026-07-27 21:41 UTCLive pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-07-27 21:41 UTCEverything below is measured over the latest 3 public posts (spanning ~20143 hours).
Posting hours (UTC)
Languages: English (2) · German (1)
Avg boosts / post: 0.7
Top of the latest posts
@xkcd well isn’t the current leap-second (and negative leap-second) debate exactly this? #utc #tai #ut1 #astronomy #iers
In this excellent post I learned today that in edition to #UTC there is ofc #UT1 and I’m already ready to seek professional help again 😂😅 https://ssoready.com/blog/engineering/truths-programmers-timezones/ Still smirking about `Antarctica
Melting ice solves leap-second problem — for now https://www.nature.com/articles/d41586-024-00850-x #TimeKeeping #LeapSecond #ClimateChange #IceSheets #UTC #tai #UT1
Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/ut1