You can check someone else’s Roblox join date only if it’s visible on their public profile. Roblox help says the join date appears in the Statistics box at the bottom of the profile page, and community posts confirm that this is visible on other players’ profiles too.

How to do it

  1. Open the person’s Roblox profile.
  2. Scroll to the bottom of the page.
  3. Look for the Joined date in the Statistics section.

Important note

Roblox does not expose a user’s private birthday for others to see; only the account join date is generally available. If you meant “account anniversary,” that is the same thing as the yearly date they joined Roblox.

What you can’t do

  • You generally can’t see someone’s real birthday from their Roblox account.
  • There is no public method for checking private account details beyond what Roblox displays on the profile.

If you want, I can also show you how to find the join date on mobile step by step.