Lightweight Date & Time Nanipulation Library – dayjs
dayjs is a blazing-fast, ultra light (2kb) alternative to the moment.js library that helps you parse, validate, manipulate, and display dates and times in pure JavaScript.
Date & Time
Full-featured Calendar JavaScript Library – tui.calendar
tui.calendar is a powerful, full-featured calendar library used to showcase custom events, schedules, tasks in daily, weekly, and monthly views.
Handling Timezone In JavaScript – Spacetime
Spacetime is a pure JavaScript library used to manipulate, traverse, compare, and format dates and times across planet Earth.
Modern Calendar Date Picker In Vanilla JavaScript
A simple yet modern and user-friendly date picker with a monthly calendar.
Generate Event Calendar Links For Google, Yahoo And Outlook – calendar-link
Automatically generates calendar links from events you provide so that you can add the events to the Google Calendar, Yahoo Calendar, Microsoft Outlook, Office 365, and icalendar.
Material Inspired Date & Time Picker – simplePicker
simplePicker is a vanilla JavaScript plugin to create Material Design inspired date picker with time picker integrated.
Simple Datepicker Calendar In Vanilla JavaScript – Datepicker.js
A simple, lightweight, configurable date picker that works with the input field and is written in pure JavaScript/CSS.
Flipping Countdown Clock With JavaScript And CSS – countDown.js
countDown.js is a dependency-free JavaScript library for creating a countdown timer just like the retro looking flip clock.
Format JavaScript Date Strings – format-date
format-date is a super tiny (~0.4kb) JavaScript library to format JavaScript date() strings using custom Date and Time patterns.
Easy Duration Picker In Vanilla JavaScript – html-duration-picker.js
A pure JavaScript duration picker that allows the user to pick duration (in hours, minutes, seconds) in a normal input field.