| Hijri Month | Starts On | Day of Week | Days in Month |
|---|---|---|---|
| Muharram 587 | 28-Jan-1191 | Monday | 30 days. |
| Safar 587 | 27-Feb-1191 | Wednesday | 29 days. |
| Rabi al-awwal 587 | 28-Mar-1191 | Thursday | 30 days. |
| Rabi al-thani 587 | 27-Apr-1191 | Saturday | 29 days. |
| Jumada al-awwal 587 | 26-May-1191 | Sunday | 30 days. |
| Jumada al-thani 587 | 25-Jun-1191 | Tuesday | 30 days. |
| Rajab 587 | 25-Jul-1191 | Thursday | 30 days. |
| Shaban 587 | 24-Aug-1191 | Saturday | 29 days. |
| Ramadan 587 | 22-Sep-1191 | Sunday | 30 days. |
| Shawwal 587 | 22-Oct-1191 | Tuesday | 29 days. |
| Dhu al-Qidah 587 | 20-Nov-1191 | Wednesday | 30 days. |
| Dhu al-Hijjah 587 | 20-Dec-1191 | Friday | 29 days. |