Handling Timezone In JavaScript – Spacetime
Spacetime is a pure JavaScript library used to manipulate, traverse, compare, and format dates and times across planet Earth.
Date & Time
Feature-rich Event Calendar In JavaScript – Calendar.js
A full-featured event calendar JavaScript library that allows you to view and manage events (like scheduled tasks, appointments) in a responsive calendar interface.
Beautiful Date Picker Component – MCDatepicker
A well-designed, fully responsive, highly-customizable, framework-agnostic date & date range picker component written in Vanilla JavaScript.
Flat Style JavaScript Date Picker – flatpickr
flatpickr is a powerful and customizable JavaScript library which enables the visitor to pick a date/time/date range from a calendar.
Easy Timer/Countdown/Chronometer Library – easytimer.js
easytimer.js is an easy-to-use JavaScript library that allows to count up to or countdown from a given value with callback support.
Vanilla JavaScript Date & Date Range Picker For The Web
This is a flexible, powerful, accessible, multi-language, framework-agnostic date & date range picker for modern web design.
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.
Animated Calendar UI Design
An elegant, animated, light (or dark) calendar UI design implemented in plain HTML, JavaScript, and CSS.
Countdown Timer Plugin With Pure JavaScript – TimezZ
This is the standalone version of the jQuery TimezZ plugin that lets you create a customizable countdown timer in days:hours:minutes:seconds format.
Developer-friendly Date Picker In Pure JavaScript – thedatepicker
thedatepicker is a simple, customizable, developer-friendly date picker plugin implemented in pure (vanilla) JavaScript.