date-format
Formatting Date objects as strings since 2013
fecha
Date formatting and parsing
@syncfusion/ej2-calendars
A complete package of date or time components with built-in features such as date formatting, inline editing, multiple (range) selection, range restriction, month and year selection, strict mode, and globalization.
dayjs-with-plugins
Day.js with all plugins and locales added out of the box, no need to use dayjs.extend nor dayjs.locale!
@brightspace-ui/intl
Internationalization APIs for number, date, time and file size formatting and parsing in D2L Brightspace.
