Indeed. For anyone interested in Temporal specifically, they can see the proposal here: https://tc39.es/proposal-temporal/ https://tc39.es/proposal-temporal/ H

Indeed. For anyone interested in Temporal specifically, they can see the proposal here: https://tc39.es/proposal-temporal/ https://tc39.es/proposal-temporal/ Here's an example of the specification for computing the duration between two dates: https://tc39.es/proposal-temporal/#sec-temporal-calendardateuntil https://tc39.es/proposal-temporal/#sec-temporal-calendardate... (I picked one of the "simpler" ones. Have fun.)