The Date object in JavaScript is the main element when it comes to handling date and time. It records a single point in time as the milliseconds’ number elapsed since the 1st January 1970 00:00: ...

Luxon is a modern lightweight library for parsing, validating, manipulating, and formatting dates in JavaScript.

But as a JavaScript developer, you would know this theory doesn't hold long after you start working with dates for real. On top of different date-time formats, you have to consider timezone and ...