02:02:02 on 03/03/2023 will mark the 3rd second of the 3rd minute of the 3rd hour of the 3rd day of the 3rd month of the 3rd year of the 3rd decade of the 3rd millennium on the 3rd planet.
This kind of thing only happens once every thousand years, the last such times it happened was 01:01:01 on 02/02/1012 and the time before that was 00:00:00 on 01/01/0001 (so it's also the THIRD time this is will happen!).
The next time it will happen would be 03:03:03 on 04/04/3034.