On the day of my birthday, I wondered (of course - as many us do), if this is my start date, what is the to origin story of the birth date of computer time?

The Unix epoch, defined as 00:00:00 UTC on January 1, 1970, serves as the foundational reference point for timekeeping in nearly all modern computing systems. This date, though seemingly arbitrary, emerged from a confluence of technical constraints, historical decisions, and practical considerations during Unix’s early development.