How it works
Every Discord ID is a “snowflake”: a 64-bit number with the creation time built in. The first 42 bits count milliseconds since the start of 2015 (Discord’s epoch), and the rest record which internal worker and process made it, plus a counter.
Paste any ID to see when that account, server, message, or channel was created, how old it is, and the internal fields. Everything runs in your browser.
Moderators use this to spot brand-new alt accounts. Developers use it to sort or paginate by time without extra API calls.
Questions
How do I copy an ID?
Enable Developer Mode in User Settings, Advanced. Then right-click any user, server, channel, or message and choose Copy ID.
What is the Discord epoch?
January 1, 2015 at 00:00 UTC, or 1420070400000 in Unix milliseconds. Snowflake timestamps count from there.
Can I tell an account’s age from its ID?
Yes. A user ID is created with the account, so decoding it gives the exact account creation time.