Astronomical space coordinate and time conversion. Calculate Julian day, local sidereal time and ecliptic obliquity with great precision.
C ++ library for working with date and time
A C implementation of most of the book "Calendrical Calculations".
A Swift framework containing an astronomical model of the Moon, including properties to obtain the age, percent illuminated, phase, transitions, and other properties of the Moon at a point in time. This is a Swift port of John Walker's `moontool.c`, originally written in 1987.
.NET library for working with historical dates
Julian date calculations and calendar conversions for Swift
Converts a regular JavaScript date to the modern Julian date format YYYYDDD.
Astrometric Java code
DoD Ordinal Date ("Julian Date") converter
"Julian and his dates" calculates different Julian dates.
Converts a gregorian date to julian date.
🗓 🔍 Easy way to convert date julia to jsdate
Small class to calculate various versions of the Julian date
Pequeño conversor entre calendarios que funciona en la terminal y en el navegador.
Julian Date gadget for Windows. main branch: https://barionleg.github.io/JulianDate/source/Julian.html
A python package for calendrical calculations
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