| Hijri Month | Starts On | Day of Week | Days in Month |
|---|---|---|---|
| Muharram 634 | 4-Sep-1236 | Thursday | 29 days. |
| Safar 634 | 3-Oct-1236 | Friday | 30 days. |
| Rabi al-awwal 634 | 2-Nov-1236 | Sunday | 30 days. |
| Rabi al-thani 634 | 2-Dec-1236 | Tuesday | 29 days. |
| Jumada al-awwal 634 | 31-Dec-1236 | Wednesday | 30 days. |
| Jumada al-thani 634 | 30-Jan-1237 | Friday | 29 days. |
| Rajab 634 | 28-Feb-1237 | Saturday | 30 days. |
| Shaban 634 | 30-Mar-1237 | Monday | 29 days. |
| Ramadan 634 | 28-Apr-1237 | Tuesday | 29 days. |
| Shawwal 634 | 27-May-1237 | Wednesday | 30 days. |
| Dhu al-Qidah 634 | 26-Jun-1237 | Friday | 29 days. |
| Dhu al-Hijjah 634 | 25-Jul-1237 | Saturday | 30 days. |