more calendar conversions, epochs, JDN, moon, +

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a few extra astronomical / calendar / epoch features that mathematica does not have.
has many new functions.

supports multiple calendars (julian, gregorian, synodic, anomalistic). supports JDN conveniently, shows moon phase est. NEW: supports day number from 0 of any calendar

conversion all-way between supported calendars

supports multiple epochs and epoch generation. convert between some epochs without calendar support, ie, J2000.0, JDN, to some effect can create/import epochs and use TAI clock

<< Months`Months`

{PrettyDate[], PrettyDate[calendarChange2[Date[], gregorian, julian], julian], MoonPhase[]}

{"Sunday, July 13 2014. 2:37:04 p.m. -4 GMT", "Saturday, Iunius 30 2014. 2:37:04 p.m. -4 GMT", "Full Moon"}

timeDeduce is a minor extra: deduce and show other times / angles, from simple time equations.

input: GMT,lon,tz,arieslon
output: input + SHA,Ra,LHA ; in dn,tm or ang

Months4Mathematica Web Site


  • Months has full calendar conversions mm does not + moonphase
  • Months has some astronomic features, ie JDN, Epochs, etc
  • new experimental features:
  • timeDeduce can also in theory deduce with times from diff. calendar days
  • NewEpochFrom (deduce to make new epoch)

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