Show HN: Generate Version 7 UUID's for a Timestamp

I use UUIDv7's in multiple places as an efficient index in Postgres. When querying this data I usually need to be able to query between a time range so wanted to have a quick way to generate a reference ID that I could use in a BETWEEN query.

All the simple, fast tools I found online were focused on generating bulk ids or converting from an ID to a timestamp rather than the other way around, so I wrote one myself.

For example if I wanted to find everything that happened between 2025-03-11T13:00:00.000Z and 2025-03-11T13:59:59.999Z I can type in the timestamp, select earliest (or latest) to get the min/max and copy the identifiers of 0195854a-6480-7000-8000-000000000000 and 01958581-52ff-7fff-bfff-ffffffffffff

Sharing in case someone else finds it as useful as I do.

Comments URL: https://news.ycombinator.com/item?id=43332226

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https://uuidv7.org/