Islamic Hijri Calendar For October - 1580 Hijri
| Western Date | Day of Week | Hijri Date |
| 1-October-1580 | Saturday | 21-Shaban-988 |
| 2-October-1580 | Sunday | 22-Shaban-988 |
| 3-October-1580 | Monday | 23-Shaban-988 |
| 4-October-1580 | Tuesday | 24-Shaban-988 |
| 5-October-1580 | Wednesday | 25-Shaban-988 |
| 6-October-1580 | Thursday | 26-Shaban-988 |
| 7-October-1580 | Friday | 27-Shaban-988 |
| 8-October-1580 | Saturday | 28-Shaban-988 |
| 9-October-1580 | Sunday | 29-Shaban-988 |
| 10-October-1580 | Monday | 30-Shaban-988 |
| 11-October-1580 | Tuesday | 1-Ramadan-988 |
| 12-October-1580 | Wednesday | 2-Ramadan-988 |
| 13-October-1580 | Thursday | 3-Ramadan-988 |
| 14-October-1580 | Friday | 4-Ramadan-988 |
| 15-October-1580 | Saturday | 5-Ramadan-988 |
| 16-October-1580 | Sunday | 6-Ramadan-988 |
| 17-October-1580 | Monday | 7-Ramadan-988 |
| 18-October-1580 | Tuesday | 8-Ramadan-988 |
| 19-October-1580 | Wednesday | 9-Ramadan-988 |
| 20-October-1580 | Thursday | 10-Ramadan-988 |
| 21-October-1580 | Friday | 11-Ramadan-988 |
| 22-October-1580 | Saturday | 12-Ramadan-988 |
| 23-October-1580 | Sunday | 13-Ramadan-988 |
| 24-October-1580 | Monday | 14-Ramadan-988 |
| 25-October-1580 | Tuesday | 15-Ramadan-988 |
| 26-October-1580 | Wednesday | 16-Ramadan-988 |
| 27-October-1580 | Thursday | 17-Ramadan-988 |
| 28-October-1580 | Friday | 18-Ramadan-988 |
| 29-October-1580 | Saturday | 19-Ramadan-988 |
| 30-October-1580 | Sunday | 20-Ramadan-988 |
| 31-October-1580 | Monday | 21-Ramadan-988 |
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