time

⏰ Day.js 2kB immutable date-time library alternative to Moment.js with the same modern API

⏳ Modern JavaScript date utility library ⌛️

:zap: A Fast, Extensible Progress Bar for Python and CLI

The mobile-friendly, responsive, and lightweight jQuery date & time input picker.

The automatic work journal/time tracker. Privately turns your screen into a timeline of what you actually accomplished. Open-source and local-first.

A simple, semantic and developer-friendly time package for golang

Build Time Analyzer for Swift

:date: Easy!Appointments - Self Hosted Appointment Scheduler

Date and time library for Rust

Collection of advice on optimizing compile times of Swift projects.

A gem providing "time travel", "time freezing", and "time acceleration" capabilities, making it simple to test time-dependent code. It provides a unified method to mock Time.now, Date.today, and DateTime.now in a single call.

A datetime library for Rust that encourages you to jump into the pit of success.

scheduler for Ruby (at, in, cron and every jobs)

Robust and type-safe date and time calculations for Swift

Complex period comparisons

Android NTP time library. Get the true current time impervious to device clock time changes

Jiffy is a Flutter (Android, IOS and Web) date time package for parsing, manipulating, querying and formatting dates

⏰ Type-safe DateTime and Duration calculations, powered by extensions.

Azan + Prayer Time + MCP + AI Agents + Islamic + Salah + A lightweight MCP library to calculate prayer times and trigger Azan with a single tool call. If you’re building an AI agent or prayer application, there’s no need to deal with astronomical calculations, timezones, or edge cases again.