Date-fns in an open-source library supporting date parsing and formatting, locales, and date arithmetic like addition and subtraction. It’s dubbed as Lodash for dates due to its versatility.

The most important class exposed by Luxon is the DateTime, which enables developers to parse a date object (or string), format it, and run basic math operations (i.e. add three days to the date).

Date-fns in an open-source library supporting date parsing and formatting, locales, and date arithmetic like addition and subtraction. It’s dubbed as Lodash for dates due to its versatility.