# Qrono > A tiny JavaScript date library with 100+ APIs and strict DST guarantees. Qrono is designed for single-timezone applications and provides immutable, chainable date-time and calendar-date APIs. ## Table of Contents ### Documentation - [Qrono](https://qronojs.dev/index.md): A tiny JavaScript date library with 100+ APIs and strict DST guarantees. - [Introduction](https://qronojs.dev/introduction.md) - [API Comparison](https://qronojs.dev/comparison.md) - [API Reference](https://qronojs.dev/api.md)