#calendar2021
Live, measured metrics for the hashtag #calendar2021 from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #calendar2021
This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.
Day-by-day usage
measured · mastodon.online (Mastodon public tags API) · fetched 2026-10-06 07:11 UTC0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · mastodon.online (Mastodon public search API) · fetched 2026-10-06 07:11 UTCLive pulse
measured · mastodon.online (Mastodon tag timeline) · fetched 2026-10-06 07:11 UTCEverything below is measured over the latest 36 public posts (spanning ~18824 hours).
Posting hours (UTC) — busiest: 14:00
Languages: English (8) · Polish (6)
Avg boosts / post: 0.4
Top of the latest posts
#AdventOfPhotography - Day 18: Yet another picture showing the village of #Altaussee. This time showing the lake with #Trisselwand in the background. This is the June picture from my #calendar2021. #Austria #Styria #Altaussee #Alps #mountai
#AdventOfPhotography - Day 17: Different #night pictures compose the May pictures of my #calendar2021. One shows the moon above #Altausseersee. Another one shows the comet C/2020 F3 (#NEOWISE) above the city of Linz and the third picture sh
#AdventOfPhotography - Day 16: Three more pictures from the beautiful #Ausseerland. Part of #Salzkammergut and located in north western #Styria it's embedded between the mountains. These are the April pictures from my #calendar2021. #Austri
What “calendar2021” means
Wiktionary · Wikipediacalendar/ˈkæl.ən.də/
- nounAny system by which time is divided into days, weeks, months, and years.
- verbTo set a date for a proceeding in court, usually done by a judge at a calendar call.
A calendar is a system of organizing days. This is done by giving names to periods of time, typically days, weeks, months and years. A date is the designation of a single and specific day within such a system. A calendar is also a physical record of such a system. A calendar can also mean a list of planned events, such as a court calendar, or a partly or fully chronological list of documents, such as a calendar of wills.
“Calendar” on Wikipedia (CC BY-SA) →#calendar2021 across platforms
every network with a public tag surfaceFollow #calendar2021 straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.
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/calendar2021