Find the date and time in a Bluesky TID

Bluesky posts and other AT Protocol records often have a short code called a TID, or Timestamp Identifier. Part of this code represents a date and time.

Paste a TID, a Bluesky post URL, or an AT Protocol URI below to see the time stored in it. The conversion happens in your browser.

A TID generated for the current time is 2222222222222.

Convert a TID to a readable date

Enter a TID, Bluesky post URL, or AT URI:

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How does a TID contain a timestamp?

A TID is a 13-character code designed to keep records in time order. Most of the code stores the number of microseconds since January 1, 1970. The remaining part is a small clock identifier that helps distinguish IDs created at nearly the same time.

TIDs use the lowercase characters 234567abcdefghijklmnopqrstuvwxyz. Uppercase letters and the older format containing hyphens are not valid.

Please note: A TID can be chosen or changed by the person or software creating a record. Its timestamp is useful as an indication, but it is not proof of when a post or record was created.

Read the AT Protocol TID specification for the technical details.