❓ Check if a year is a leap year
Determine the day of the year.
Lightweight util for your Node.js and browser apps
Get a formatted timestamp. Used in gulp, assemble, generate, and many others.
Return the size (in bytes) of the canonical binary representation of a specified numeric type.
Utilities for double-precision floating-point numbers.
⏰ Day.js 2kB immutable date-time library alternative to Moment.js with the same modern API
🍀 Utilities for working with Leap Years
Determine the day of the quarter.
If a condition is truthy, invoke `x`; otherwise, invoke `y`.
🏛️ Convert numbers to Roman numerals
Library for extending JavaScript dates
Update a copyright statement with the current year. Also makes minor corrections.
Fancy date ranges for Moment.js
List of functions which you can use to replace moment.js + ESLint Plugin
A simple measure of dependency freshness