| Hijri Month | Starts On | Day of Week | Days in Month |
|---|---|---|---|
| Muharram 13 | 7-March-634 | Monday | 29 days. |
| Safar 13 | 5-April-634 | Tuesday | 30 days. |
| Rabi Al-Awwal 13 | 5-May-634 | Thursday | 29 days. |
| Rabi Al-Thani 13 | 3-June-634 | Friday | 30 days. |
| Jumada Al-Awwal 13 | 3-July-634 | Sunday | 30 days. |
| Jumada Al-Thani 13 | 2-August-634 | Tuesday | 30 days. |
| Rajab 13 | 1-September-634 | Thursday | 29 days. |
| Shaban 13 | 30-September-634 | Friday | 30 days. |
| Ramadan 13 | 30-October-634 | Sunday | 29 days. |
| Shawwal 13 | 28-November-634 | Monday | 29 days. |
| Dhu Al-Qidah 13 | 27-December-634 | Tuesday | 30 days. |
| Dhu Al-Hijjah 13 | 26-January-635 | Thursday | 29 days. |