Rabi Al-Thani 1640 — Hijri to Gregorian
| Hijri Day | Hijri Month & Year | Western Date | Day of Week |
|---|---|---|---|
| 1 | Rabi Al-Thani, 1640 | 25-December-2212 | Friday |
| 2 | Rabi Al-Thani, 1640 | 26-December-2212 | Saturday |
| 3 | Rabi Al-Thani, 1640 | 27-December-2212 | Sunday |
| 4 | Rabi Al-Thani, 1640 | 28-December-2212 | Monday |
| 5 | Rabi Al-Thani, 1640 | 29-December-2212 | Tuesday |
| 6 | Rabi Al-Thani, 1640 | 30-December-2212 | Wednesday |
| 7 | Rabi Al-Thani, 1640 | 31-December-2212 | Thursday |
| 8 | Rabi Al-Thani, 1640 | 1-January-2213 | Friday |
| 9 | Rabi Al-Thani, 1640 | 2-January-2213 | Saturday |
| 10 | Rabi Al-Thani, 1640 | 3-January-2213 | Sunday |
| 11 | Rabi Al-Thani, 1640 | 4-January-2213 | Monday |
| 12 | Rabi Al-Thani, 1640 | 5-January-2213 | Tuesday |
| 13 | Rabi Al-Thani, 1640 | 6-January-2213 | Wednesday |
| 14 | Rabi Al-Thani, 1640 | 7-January-2213 | Thursday |
| 15 | Rabi Al-Thani, 1640 | 8-January-2213 | Friday |
| 16 | Rabi Al-Thani, 1640 | 9-January-2213 | Saturday |
| 17 | Rabi Al-Thani, 1640 | 10-January-2213 | Sunday |
| 18 | Rabi Al-Thani, 1640 | 11-January-2213 | Monday |
| 19 | Rabi Al-Thani, 1640 | 12-January-2213 | Tuesday |
| 20 | Rabi Al-Thani, 1640 | 13-January-2213 | Wednesday |
| 21 | Rabi Al-Thani, 1640 | 14-January-2213 | Thursday |
| 22 | Rabi Al-Thani, 1640 | 15-January-2213 | Friday |
| 23 | Rabi Al-Thani, 1640 | 16-January-2213 | Saturday |
| 24 | Rabi Al-Thani, 1640 | 17-January-2213 | Sunday |
| 25 | Rabi Al-Thani, 1640 | 18-January-2213 | Monday |
| 26 | Rabi Al-Thani, 1640 | 19-January-2213 | Tuesday |
| 27 | Rabi Al-Thani, 1640 | 20-January-2213 | Wednesday |
| 28 | Rabi Al-Thani, 1640 | 21-January-2213 | Thursday |
| 29 | Rabi Al-Thani, 1640 | 22-January-2213 | Friday |
Baseline: Tabular (Kuwaiti) Hijri. Local moon-sighting may vary ±1 day.