Islamic Hijri Calendar For 642 CE
| Western Month | Converts To Hijri Month |
|---|
| Jan 642 | Muharram, 21 |
| Feb 642 | Safar, 21 |
| Mar 642 | Rabi al-awwal, 21 |
| Apr 642 | Rabi al-thani, 21 |
| May 642 | Jumada al-awwal, 21 |
| Jun 642 | Jumada al-thani, 21 |
| Jul 642 | Rajab, 21 |
| Aug 642 | Shaban, 21 |
| Sep 642 | Ramadan, 21 |
| Oct 642 | Dhu al-Qidah, 21 |
| Nov 642 | Dhu al-Hijjah, 21 |
| Dec 642 | Muharram, 22 |