Islamic Hijri Calendar For September - 866 Hijri
| Western Date | Day of Week | Hijri Date |
| 1-September-866 | Sunday | 17-Shaban-252 |
| 2-September-866 | Monday | 18-Shaban-252 |
| 3-September-866 | Tuesday | 19-Shaban-252 |
| 4-September-866 | Wednesday | 20-Shaban-252 |
| 5-September-866 | Thursday | 21-Shaban-252 |
| 6-September-866 | Friday | 22-Shaban-252 |
| 7-September-866 | Saturday | 23-Shaban-252 |
| 8-September-866 | Sunday | 24-Shaban-252 |
| 9-September-866 | Monday | 25-Shaban-252 |
| 10-September-866 | Tuesday | 26-Shaban-252 |
| 11-September-866 | Wednesday | 27-Shaban-252 |
| 12-September-866 | Thursday | 28-Shaban-252 |
| 13-September-866 | Friday | 29-Shaban-252 |
| 14-September-866 | Saturday | 1-Ramadan-252 |
| 15-September-866 | Sunday | 2-Ramadan-252 |
| 16-September-866 | Monday | 3-Ramadan-252 |
| 17-September-866 | Tuesday | 4-Ramadan-252 |
| 18-September-866 | Wednesday | 5-Ramadan-252 |
| 19-September-866 | Thursday | 6-Ramadan-252 |
| 20-September-866 | Friday | 7-Ramadan-252 |
| 21-September-866 | Saturday | 8-Ramadan-252 |
| 22-September-866 | Sunday | 9-Ramadan-252 |
| 23-September-866 | Monday | 10-Ramadan-252 |
| 24-September-866 | Tuesday | 11-Ramadan-252 |
| 25-September-866 | Wednesday | 12-Ramadan-252 |
| 26-September-866 | Thursday | 13-Ramadan-252 |
| 27-September-866 | Friday | 14-Ramadan-252 |
| 28-September-866 | Saturday | 15-Ramadan-252 |
| 29-September-866 | Sunday | 16-Ramadan-252 |
| 30-September-866 | Monday | 17-Ramadan-252 |
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