date(1) on macOS
The text acb46015582b, as macOS 13.2, macOS 13.1, macOS 13.0, macOS 12.5, macOS 12.4, macOS 12.3 shipped it.
display or set date and time
Flags it lists
-
-I -
-R -
-f -
-j -
-n -
-r -
-u -
-v