stored the date internally as the number of days since some entirely arbitrary date back in the 1800s....
(, Sun 14 Mar 2021, 18:53, Reply)
Epochs? You don't generally need to deal with them directly unless you really want to (e.g. sorting datestamps chronologically without the overhead of having to convert them to another calendar format) and programming languages usually provide functions for dealing with date and time in human readable form.
(, Sun 14 Mar 2021, 19:31, Reply)