Simple & Clean Analog Clock JS Library – Clock.js
A simple Analog Clock for the web, built with JavaScript and CSS3. Customize timezones and display options easily.
Date & Time
Generate A Clean Calendar For Any Month And Year – Calendar.js
A tiny JavaScript library for generating a calendar UI based on the year and month you specify.
Vanilla Calendar JS Library for Date Picking, Scheduling, and Timelines
A JavaScript calendar library with date picker, schedule grid, timeline view, and helper utilities for vanilla JS, React, and Vue.
Vanilla DateTime Picker: Zero-Dependency JS Date-Time Input
Zero-dependency datetime picker with calendar navigation, keyboard shortcuts, and time selection. ESM and IIFE builds included.
Convert Timestamp To User-friendly Format – relative-time.js
A lightweight and standalone relative time JavaScript library that converts timestamps to human-readable time format.
Convert Human-readable Duration Strings to Milliseconds
Convert timeout strings to milliseconds in JavaScript. Handles “2 days 5 hours” format. Perfect for cache TTLs and rate limits.
Human-friendly Relative Time Formatter – human-time
A zero-dependency JavaScript library that converts timestamps into human-readable formats like “just now” or “3 days ago” for modern apps.
Handle Holidays in JavaScript With Ease – best-holiday
A lightweight JavaScript library for holiday handling. Add holiday functionality to your web apps with ease.
Vanilla JS Date & Time Picker for Moderb Web Apps – Tuncxys DatePicker
Vanilla JavaScript date and time picker with 20 languages, custom themes, and smart validation. Zero dependencies required.
Versatile Datetime Picker For Bulma – bulma-calendar
A responsive, customizable, and feature-rich Date & Time picker component for Bulma framework.