Following is a comparison of the different calendars used in Western civilization (Gregorian), the Jewish culture, and Islamic culture. The following are the months according to each calendar.
| GREGORIAN | JEWISH | ISLAMIC | |||
| Name | Days | Name | Days | Name | Days |
| January | 31 | Tishri (in the year 5753, began Sept. 28, 1992) | 30 | Muharram (in A.H. 1413 began July 2, 1992) | 30 |
| February in leap years |
28 or 29 | Heshvan | 29 or 30 | Safar | 29 |
| March | 31 | Kislev | 29 or 30 | Rabi I | 30 |
| April | 30 | Tebet | 29 | Rabi II | 29 |
| May | 31 | Shebat | 30 | Jumada I | 30 |
| June | 30 | Adar | 29 or 30 | Jumada II | 29 |
| July | 31 | Nisan | 30 | Rajab | 30 |
| August | 31 | Iyar | 29 | Sha’ban | 29 |
| September | 30 | Sivan | 30 | Ramadan | 30 |
| October | 31 | Tammuz | 29 | Shawwal | 29 |
| November | 30 | Ab | 30 | Dhu’l-Qa’dah | 30 |
| December | 31 | Elul | 29 | Dhu’l-Hijja in lea years | 29 or 30 |
| 12 months | 365 or 366 days | 12 months | 353 or 356 days | 12 months | 354 or 355 days |
This calendar chart was adapted from, Merriam-Webster, Inc. Merriam-Webster’s Collegiate Dictionary. Springfield, MA: Merriam-Webster, Inc., 2003.
