date.now to epoch code example
Example 1: javascript today date in epoch
const start = Date.now();
/*gives the number of milliseconds elapsed since January 1, 1970 00:00:00 UTC.*/
Example 2: epoch
Epoch timestamp is a unit of measurement for time. It is the number of
seconds elapsed since the countdown has started.
Beginning epochs per system:
macOS - January 1, 1904
Windows - January 1, 1601
Unix - January 1, 1970