convdate(1) on Linux
The text 0ebce9f03e8d, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 3.1 (Sarge), Debian 3.0 (Woody), Debian 2.1 (Slink), Debian 2.0 (Hamm), Debian 1.3 (Bo) shipped it.
convert time/date strings and numbers
Flags it lists
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-c -
-n -
-s