Luxon
Luxon is a modern JavaScript library for working with dates and times, built on top of the native JavaScript Intl API and Temporal proposal. It provides a simple, immutable, and chainable API for parsing, formatting, manipulating, and querying dates and times, with built-in support for time zones, locales, and durations. It is designed as a successor to libraries like Moment.js, offering better performance and modern JavaScript features.
Developers should use Luxon when building applications that require robust date and time handling, especially in international or timezone-sensitive contexts, such as scheduling apps, financial systems, or global dashboards. It is ideal for modern JavaScript projects (ES6+) due to its immutable design and integration with native APIs, providing a lightweight alternative to heavier libraries while avoiding the pitfalls of manual date manipulation.