Islamic Hijri Calendar For October - 1821 Hijri
| Western Date | Day of Week | Hijri Date |
|---|
| 1-October-1821 | Monday | 4-Muharram-1237 |
| 2-October-1821 | Tuesday | 5-Muharram-1237 |
| 3-October-1821 | Wednesday | 6-Muharram-1237 |
| 4-October-1821 | Thursday | 7-Muharram-1237 |
| 5-October-1821 | Friday | 8-Muharram-1237 |
| 6-October-1821 | Saturday | 9-Muharram-1237 |
| 7-October-1821 | Sunday | 10-Muharram-1237 |
| 8-October-1821 | Monday | 11-Muharram-1237 |
| 9-October-1821 | Tuesday | 12-Muharram-1237 |
| 10-October-1821 | Wednesday | 13-Muharram-1237 |
| 11-October-1821 | Thursday | 14-Muharram-1237 |
| 12-October-1821 | Friday | 15-Muharram-1237 |
| 13-October-1821 | Saturday | 16-Muharram-1237 |
| 14-October-1821 | Sunday | 17-Muharram-1237 |
| 15-October-1821 | Monday | 18-Muharram-1237 |
| 16-October-1821 | Tuesday | 19-Muharram-1237 |
| 17-October-1821 | Wednesday | 20-Muharram-1237 |
| 18-October-1821 | Thursday | 21-Muharram-1237 |
| 19-October-1821 | Friday | 22-Muharram-1237 |
| 20-October-1821 | Saturday | 23-Muharram-1237 |
| 21-October-1821 | Sunday | 24-Muharram-1237 |
| 22-October-1821 | Monday | 25-Muharram-1237 |
| 23-October-1821 | Tuesday | 26-Muharram-1237 |
| 24-October-1821 | Wednesday | 27-Muharram-1237 |
| 25-October-1821 | Thursday | 28-Muharram-1237 |
| 26-October-1821 | Friday | 29-Muharram-1237 |
| 27-October-1821 | Saturday | 30-Muharram-1237 |
| 28-October-1821 | Sunday | 1-Safar-1237 |
| 29-October-1821 | Monday | 2-Safar-1237 |
| 30-October-1821 | Tuesday | 3-Safar-1237 |
| 31-October-1821 | Wednesday | 4-Safar-1237 |