| Hijri Month | Starts On | Day of Week | Days in Month |
|---|---|---|---|
| Muharram 636 | 13-Aug-1238 | Friday | 29 days. |
| Safar 636 | 11-Sep-1238 | Saturday | 30 days. |
| Rabi al-awwal 636 | 11-Oct-1238 | Monday | 30 days. |
| Rabi al-thani 636 | 10-Nov-1238 | Wednesday | 30 days. |
| Jumada al-awwal 636 | 10-Dec-1238 | Friday | 30 days. |
| Jumada al-thani 636 | 9-Jan-1239 | Sunday | 29 days. |
| Rajab 636 | 7-Feb-1239 | Monday | 30 days. |
| Shaban 636 | 9-Mar-1239 | Wednesday | 29 days. |
| Ramadan 636 | 7-Apr-1239 | Thursday | 30 days. |
| Shawwal 636 | 7-May-1239 | Saturday | 29 days. |
| Dhu al-Qidah 636 | 5-Jun-1239 | Sunday | 29 days. |
| Dhu al-Hijjah 636 | 4-Jul-1239 | Monday | 29 days. |