Rabi Al-Awwal 999 — Hijri to Gregorian
| Hijri Day | Hijri Month & Year | Western Date | Day of Week |
|---|---|---|---|
| 1 | Rabi Al-Awwal, 999 | 27-December-1590 | Thursday |
| 2 | Rabi Al-Awwal, 999 | 28-December-1590 | Friday |
| 3 | Rabi Al-Awwal, 999 | 29-December-1590 | Saturday |
| 4 | Rabi Al-Awwal, 999 | 30-December-1590 | Sunday |
| 5 | Rabi Al-Awwal, 999 | 31-December-1590 | Monday |
| 6 | Rabi Al-Awwal, 999 | 1-January-1591 | Tuesday |
| 7 | Rabi Al-Awwal, 999 | 2-January-1591 | Wednesday |
| 8 | Rabi Al-Awwal, 999 | 3-January-1591 | Thursday |
| 9 | Rabi Al-Awwal, 999 | 4-January-1591 | Friday |
| 10 | Rabi Al-Awwal, 999 | 5-January-1591 | Saturday |
| 11 | Rabi Al-Awwal, 999 | 6-January-1591 | Sunday |
| 12 | Rabi Al-Awwal, 999 | 7-January-1591 | Monday |
| 13 | Rabi Al-Awwal, 999 | 8-January-1591 | Tuesday |
| 14 | Rabi Al-Awwal, 999 | 9-January-1591 | Wednesday |
| 15 | Rabi Al-Awwal, 999 | 10-January-1591 | Thursday |
| 16 | Rabi Al-Awwal, 999 | 11-January-1591 | Friday |
| 17 | Rabi Al-Awwal, 999 | 12-January-1591 | Saturday |
| 18 | Rabi Al-Awwal, 999 | 13-January-1591 | Sunday |
| 19 | Rabi Al-Awwal, 999 | 14-January-1591 | Monday |
| 20 | Rabi Al-Awwal, 999 | 15-January-1591 | Tuesday |
| 21 | Rabi Al-Awwal, 999 | 16-January-1591 | Wednesday |
| 22 | Rabi Al-Awwal, 999 | 17-January-1591 | Thursday |
| 23 | Rabi Al-Awwal, 999 | 18-January-1591 | Friday |
| 24 | Rabi Al-Awwal, 999 | 19-January-1591 | Saturday |
| 25 | Rabi Al-Awwal, 999 | 20-January-1591 | Sunday |
| 26 | Rabi Al-Awwal, 999 | 21-January-1591 | Monday |
| 27 | Rabi Al-Awwal, 999 | 22-January-1591 | Tuesday |
| 28 | Rabi Al-Awwal, 999 | 23-January-1591 | Wednesday |
| 29 | Rabi Al-Awwal, 999 | 24-January-1591 | Thursday |
| 30 | Rabi Al-Awwal, 999 | 25-January-1591 | Friday |
Baseline: Tabular (Kuwaiti) Hijri. Local moon-sighting may vary ±1 day.