{"generator":"GNU social 1.2.0-beta4","title":"Conversation","totalItems":1,"items":[{"actor":{"id":"http:\/\/tantek.com\/","displayName":"Tantek","status_net":{"avatarLinks":[{"url":"https:\/\/status.blaise.ca\/theme\/neo-gnu\/default-avatar-profile.png","rel":"avatar","type":"image\/png","width":96,"height":96},{"url":"https:\/\/status.blaise.ca\/theme\/neo-gnu\/default-avatar-stream.png","rel":"avatar","type":"image\/png","width":48,"height":48},{"url":"https:\/\/status.blaise.ca\/theme\/neo-gnu\/default-avatar-mini.png","rel":"avatar","type":"image\/png","width":24,"height":24}],"profile_info":{"local_id":"207"}},"image":{"url":"https:\/\/status.blaise.ca\/theme\/neo-gnu\/default-avatar-profile.png","rel":"avatar","type":"image\/png","width":96,"height":96},"objectType":"person","url":"http:\/\/tantek.com\/","portablecontacts_net":{"displayName":"Tantek","addresses":{"formatted":"\nSan Francisco, CA\n"}}},"content":"Simple hashtag proposal for dates: datetags for the #indieweb<\/span>

In summary by example:
* #2026_08_04<\/span> ISO8601 YYYY_MM_DD date of this post
* #2026_216<\/span> ISO8601 YYYY_DDD ordinal date of this post
* #2026_08<\/span> ISO8601 YYYY_MM month of this post

Many of us posting on the indieweb often post about things in the past. Photos, events, or sometimes throwback posts. Hashtags communicate and aggregate what posts are about. Posts about the past are usually about a specific date in the past, or sometimes an entire month. Thus it makes sense to use hashtags for those dates and months.

I have been hashtagging such posts about the past for several years, and with some iteration have developed a convention that works for international readability, and is linked and indexed in #federated<\/span> #hashtag<\/span> systems like #ActivityPub<\/span> (#Mastodon etc.).

Examples of posts 10 years ago and this past week that use datetags:
* https:\/\/tantek.com\/2016\/153\/t4\/june<\/a> \u2014 monthtag and datetag
* https:\/\/tantek.com\/2026\/215\/t1\/watched-odyssey-metreon-70mm-imax<\/a> \u2014 normal and ordinal ISO8601 dates.

Additional possibilities to explore:
* yeartags \u2014 hashtags for entire years
* timetags \u2014 hashtags for specific times, undated\/floating times

After several web searches I didn\u2019t find any prior proposals for hashtags for dates or times. Hopefully by hashtagging this post, future web searches will find this proposal.

Have you hashtagged your posts with dates or times? Share your examples!

This is post 11 of #100PostsOfIndieWeb<\/span>. #100Posts<\/span>
#dateTag<\/span> #dateTags<\/span> #monthTag<\/span> #monthTags<\/span> #yearTag<\/span> #yearTags<\/span> #timeTag<\/span> #timeTags<\/span>
#August<\/span> #Blaugust<\/span> #Blaugust2026<\/span>

\u2190 https:\/\/tantek.com\/2026\/214\/t2\/watch-posts-movie-tv-emoji<\/a>
\u2192 \ud83d\udd2e","generator":{"id":"tag:status.net,2009:notice-source:ostatus","objectType":"application","status_net":{"source_code":"ostatus"}},"id":"https:\/\/tantek.com\/2026\/216\/t1\/hashtag-proposal-datetags","object":{"id":"https:\/\/tantek.com\/2026\/216\/t1\/hashtag-proposal-datetags","objectType":"note","content":"Simple hashtag proposal for dates: datetags for the #indieweb<\/span>

In summary by example:
* #2026_08_04<\/span> ISO8601 YYYY_MM_DD date of this post
* #2026_216<\/span> ISO8601 YYYY_DDD ordinal date of this post
* #2026_08<\/span> ISO8601 YYYY_MM month of this post

Many of us posting on the indieweb often post about things in the past. Photos, events, or sometimes throwback posts. Hashtags communicate and aggregate what posts are about. Posts about the past are usually about a specific date in the past, or sometimes an entire month. Thus it makes sense to use hashtags for those dates and months.

I have been hashtagging such posts about the past for several years, and with some iteration have developed a convention that works for international readability, and is linked and indexed in #federated<\/span> #hashtag<\/span> systems like #ActivityPub<\/span> (#Mastodon etc.).

Examples of posts 10 years ago and this past week that use datetags:
* https:\/\/tantek.com\/2016\/153\/t4\/june<\/a> \u2014 monthtag and datetag
* https:\/\/tantek.com\/2026\/215\/t1\/watched-odyssey-metreon-70mm-imax<\/a> \u2014 normal and ordinal ISO8601 dates.

Additional possibilities to explore:
* yeartags \u2014 hashtags for entire years
* timetags \u2014 hashtags for specific times, undated\/floating times

After several web searches I didn\u2019t find any prior proposals for hashtags for dates or times. Hopefully by hashtagging this post, future web searches will find this proposal.

Have you hashtagged your posts with dates or times? Share your examples!

This is post 11 of #100PostsOfIndieWeb<\/span>. #100Posts<\/span>
#dateTag<\/span> #dateTags<\/span> #monthTag<\/span> #monthTags<\/span> #yearTag<\/span> #yearTags<\/span> #timeTag<\/span> #timeTags<\/span>
#August<\/span> #Blaugust<\/span> #Blaugust2026<\/span>

\u2190 https:\/\/tantek.com\/2026\/214\/t2\/watch-posts-movie-tv-emoji<\/a>
\u2192 \ud83d\udd2e","url":"https:\/\/tantek.com\/2026\/216\/t1\/hashtag-proposal-datetags","status_net":{"notice_id":116330},"tags":[{"objectType":"http:\/\/activityschema.org\/object\/hashtag","displayName":"100posts"},{"objectType":"http:\/\/activityschema.org\/object\/hashtag","displayName":"100postsofindieweb"},{"objectType":"http:\/\/activityschema.org\/object\/hashtag","displayName":"202608"},{"objectType":"http:\/\/activityschema.org\/object\/hashtag","displayName":"20260804"},{"objectType":"http:\/\/activityschema.org\/object\/hashtag","displayName":"2026216"},{"objectType":"http:\/\/activityschema.org\/object\/hashtag","displayName":"activitypub"},{"objectType":"http:\/\/activityschema.org\/object\/hashtag","displayName":"blaugust"},{"objectType":"http:\/\/activityschema.org\/object\/hashtag","displayName":"blaugust2026"},{"objectType":"http:\/\/activityschema.org\/object\/hashtag","displayName":"datetags"},{"objectType":"http:\/\/activityschema.org\/object\/hashtag","displayName":"federated"},{"objectType":"http:\/\/activityschema.org\/object\/hashtag","displayName":"hashtag"},{"objectType":"http:\/\/activityschema.org\/object\/hashtag","displayName":"indiewebin"},{"objectType":"http:\/\/activityschema.org\/object\/hashtag","displayName":"monthtag"},{"objectType":"http:\/\/activityschema.org\/object\/hashtag","displayName":"monthtags"},{"objectType":"http:\/\/activityschema.org\/object\/hashtag","displayName":"timetag"},{"objectType":"http:\/\/activityschema.org\/object\/hashtag","displayName":"timetags"},{"objectType":"http:\/\/activityschema.org\/object\/hashtag","displayName":"yeartag"},{"objectType":"http:\/\/activityschema.org\/object\/hashtag","displayName":"yeartags"}]},"to":[{"objectType":"http:\/\/activitystrea.ms\/schema\/1.0\/collection","id":"http:\/\/activityschema.org\/collection\/public"}],"status_net":{"conversation":"tag:status.blaise.ca,2026-08-05:objectType=thread:nonce=ecb80ef401e1ffc1","notice_info":{"local_id":"116330","source":"ostatus"}},"published":"2026-08-05T01:00:00+00:00","provider":{"objectType":"service","displayName":"stadeus","url":"http:\/\/status.blaise.ca\/"},"verb":"post","url":"https:\/\/tantek.com\/2026\/216\/t1\/hashtag-proposal-datetags"}],"links":[{"url":"https:\/\/status.blaise.ca\/conversation\/110393","rel":"alternate","type":"text\/html"}]}