ntptime(8) on FreeBSD
The text 9d5f9d5dce6c, as FreeBSD 13.2-RELEASE, FreeBSD 13.1-RELEASE, FreeBSD 13.0-RELEASE shipped it.
read kernel time variables
Flags it lists
-
-c -
-e -
-f -
-h -
-m -
-o -
-r -
-s -
-t