dafo

General Date Format

v1.0.1 URL: https://unpkg.com/dafo@1.0.1/index.js

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date-format mysql-date-format php-date-format day-number week-number leap-year

@stdlib/assert-is-leap-year

Test if a value corresponds to a leap year in the Gregorian calendar.

v0.2.2 URL: https://unpkg.com/@stdlib/assert-is-leap-year@0.2.2/lib/index.js

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stdlib stdassert assertion assert utilities utility utils util date year yr leap leap-year gregorian calendar time is isleap isleapyear type check valid validate test isvalid

leap-year-checker

A utility to check if a given year is a leap year

v1.1.8 URL: https://unpkg.com/leap-year-checker@1.1.8/dist/index.js

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leap year date utility isLeapYear leap year check check leap year leap-year

gdate-julian

Converts date to and from julian days in gLib GDate style

v2.0.1 URL: https://unpkg.com/gdate-julian@2.0.1/src/index.js

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epochtoolkit

A comprehensive toolkit for working with dates, times, and epoch conversions in JavaScript. Provides utilities for date formatting, validation, leap year checking, and more.

v1.0.0 URL: https://unpkg.com/epochtoolkit@1.0.0/epochtoolkit/index.js

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date time epoch timestamp date-conversion date-formatting leap-year validation JavaScript toolkit