| Hijri Month | Starts On | Day of Week | Days in Month |
|---|---|---|---|
| Muharram 645 | 8-May-1247 | Wednesday | 29 days. |
| Safar 645 | 6-June-1247 | Thursday | 30 days. |
| Rabi Al-Awwal 645 | 6-July-1247 | Saturday | 29 days. |
| Rabi Al-Thani 645 | 4-August-1247 | Sunday | 30 days. |
| Jumada Al-Awwal 645 | 3-September-1247 | Tuesday | 29 days. |
| Jumada Al-Thani 645 | 2-October-1247 | Wednesday | 30 days. |
| Rajab 645 | 1-November-1247 | Friday | 30 days. |
| Shaban 645 | 1-December-1247 | Sunday | 29 days. |
| Ramadan 645 | 30-December-1247 | Monday | 30 days. |
| Shawwal 645 | 29-January-1248 | Wednesday | 30 days. |
| Dhu Al-Qidah 645 | 28-February-1248 | Friday | 29 days. |
| Dhu Al-Hijjah 645 | 28-March-1248 | Saturday | 30 days. |