* [Qrono v1.4.0](https://github.com/urin/qrono) – Type-safe, immutable, and chainable JavaScript date-time library supporting UTC and local time with strict daylight saving time handling.

* [Heat.js 5.0.1](https://github.com/williamtroup/Heat.js) – Lightweight JavaScript library for generating customizable heat maps, charts, and statistics to visualize date-based activity and trends.

* [date-and-time v4.3.0](https://github.com/knowledgecode/date-and-time) – Intuitive library for formatting and parsing dates with timezone and locale support.

* [Day.js v1.11.20](https://github.com/iamkun/dayjs) – Minimalist JavaScript library for parsing, validating, manipulating, and displaying dates and times with a Moment.js-compatible API.

* [EDTF.js v4.10.1](https://github.com/inukshuk/edtf.js) – Extended Date Time Format (ISO 8601-2) parser and toolkit for JavaScript handling uncertain, unspecified, and interval dates.

* [React Native Flash Calendar @marceloterreiro/fla...](https://github.com/MarceloPrado/flash-calendar) – Incredibly fast and flexible library to build calendars in React Native.