| Hijri Month | Starts On | Day of Week | Days in Month |
|---|---|---|---|
| Muharram 21 | 10-December-641 | Monday | 29 days. |
| Safar 21 | 8-January-642 | Tuesday | 30 days. |
| Rabi Al-Awwal 21 | 7-February-642 | Thursday | 29 days. |
| Rabi Al-Thani 21 | 8-March-642 | Friday | 30 days. |
| Jumada Al-Awwal 21 | 7-April-642 | Sunday | 29 days. |
| Jumada Al-Thani 21 | 6-May-642 | Monday | 30 days. |
| Rajab 21 | 5-June-642 | Wednesday | 30 days. |
| Shaban 21 | 5-July-642 | Friday | 29 days. |
| Ramadan 21 | 3-August-642 | Saturday | 30 days. |
| Shawwal 21 | 2-September-642 | Monday | 29 days. |
| Dhu Al-Qidah 21 | 1-October-642 | Tuesday | 30 days. |
| Dhu Al-Hijjah 21 | 31-October-642 | Thursday | 29 days. |