* [date-fns v4.4.0](https://github.com/date-fns/date-fns) – Modern JavaScript date utility library offering modular, immutable, TypeScript-first functions and extensive locale support.

* [Heat.js 5.2.0](https://github.com/williamtroup/Heat.js) – Lightweight JavaScript library for generating customizable heat maps, charts, and statistics to visualize date-based activity and trends.

* [Day.js v1.11.21](https://github.com/iamkun/dayjs) – Minimalist JavaScript library for parsing, validating, manipulating, and displaying dates and times with a Moment.js-compatible API.