| Hijri Month | Starts On | Day of Week | Days in Month |
|---|---|---|---|
| Muharram 644 | 18-May-1246 | Friday | 30 days. |
| Safar 644 | 17-June-1246 | Sunday | 29 days. |
| Rabi Al-Awwal 644 | 16-July-1246 | Monday | 30 days. |
| Rabi Al-Thani 644 | 15-August-1246 | Wednesday | 30 days. |
| Jumada Al-Awwal 644 | 14-September-1246 | Friday | 29 days. |
| Jumada Al-Thani 644 | 13-October-1246 | Saturday | 30 days. |
| Rajab 644 | 12-November-1246 | Monday | 30 days. |
| Shaban 644 | 12-December-1246 | Wednesday | 29 days. |
| Ramadan 644 | 10-January-1247 | Thursday | 30 days. |
| Shawwal 644 | 9-February-1247 | Saturday | 29 days. |
| Dhu Al-Qidah 644 | 10-March-1247 | Sunday | 30 days. |
| Dhu Al-Hijjah 644 | 9-April-1247 | Tuesday | 29 days. |