Computer Ephemeris. Calendars. Explanations.

For the sake of economy of place monthes of all calendars have coded:

Gregorian and Julian  Hebrew          Arabic                Indian            Persian          Chinese
Jan: January          Tis: Tishri     Muh: Muharram         Cha: Caitra       Far: Farvardin   01
Feb: February         Hes: Heshvan    Saf: Safar            Vai: Vaisakha     Ord: Ordibehesht 02
Mar: March            Kis: Kislev     Rb1: Rabi'a I         Jua: Juaistha     Kho: Khorad      03
Apr: April            Tev: Tevet      Rb2: Rabi'a II        Asa: Asadha       Tir: Tir         04
May: May              She: Shevat     Jm1: Jumada I         Sra: Sravana      Mor: Mordad      05
Jun: June             Ada: Adar       Jm2: Jumada II        Bha: Bhadra       Sha: Shahrivar   06
Jul: July             Nis: Nisan      Rjb: Rajab            Ash: Ashvina      Meh: Mehr        07
Aug: August           Iya: Iyar       Shb: Shaban           Kar: Kartika      Aba: Aban        08
Sep: September        Siv: Sivan      Ram: Ranmadan         Agr: Agrahayana   Azr: Azr         09
Oct: October          Tam: Tammuz     Shw: Shawwal          Pau: Pausa        Day: Day         10
Nov: November         Av : Av         Qad: Dhu al-Q'adah    Mag: Magna        Bah: Bahman      11
Dec: December         Elu: Elui       Hij: Dhu al-Hijjah    Pha: Phalguna     Esf: Esfand      12

Ad*: is code for addition month Adar I (leap year in Hebrew calendar) 
may be inserted into calendar before Adar.

Monthes of the Chinese calendar have no special names but only numbers.