@behaver/jdate

About Julian day.

v2.3.2 URL: https://unpkg.com/@behaver/jdate@2.3.2/index.js

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@lunisolar/julian

This is a tool for converting Julian Day Number and Gregorian calendar. 儒略日数和公历之间的转换工具

v0.7.1 URL: https://unpkg.com/@lunisolar/julian@0.7.1/dist/index.js

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julian Julian Day Number convertor jdn Gregorian calendar 儒略日格里历公历

astronomia

An astronomical library

v4.2.0 URL: https://unpkg.com/astronomia@4.2.0/lib/index.cjs

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astronomy julian meeus planetposition

moonbeams

Astronomical calculation library

v2.0.3 URL: https://unpkg.com/moonbeams@2.0.3/moonbeams.js

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javascript calendar astronomical calculations date season julian

@tubular/time

Date/time, IANA timezones, leap seconds, TAI/UTC conversions, calendar with settable Julian/Gregorian switchover

v3.10.4 URL: https://unpkg.com/@tubular/time@3.10.4/dist/index.min.cjs

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astronomy calendar date gregorian iana julian leap second moment olson tdt tai time time zone timezone tzdata zoneinfo