Muharram 21 — Hijri to Gregorian
| Hijri Day | Hijri Month & Year | Western Date | Day of Week |
|---|---|---|---|
| 1 | Muharram, 21 | 12-December-641 | Sunday |
| 2 | Muharram, 21 | 13-December-641 | Monday |
| 3 | Muharram, 21 | 14-December-641 | Tuesday |
| 4 | Muharram, 21 | 15-December-641 | Wednesday |
| 5 | Muharram, 21 | 16-December-641 | Thursday |
| 6 | Muharram, 21 | 17-December-641 | Friday |
| 7 | Muharram, 21 | 18-December-641 | Saturday |
| 8 | Muharram, 21 | 19-December-641 | Sunday |
| 9 | Muharram, 21 | 20-December-641 | Monday |
| 10 | Muharram, 21 | 21-December-641 | Tuesday |
| 11 | Muharram, 21 | 22-December-641 | Wednesday |
| 12 | Muharram, 21 | 23-December-641 | Thursday |
| 13 | Muharram, 21 | 24-December-641 | Friday |
| 14 | Muharram, 21 | 25-December-641 | Saturday |
| 15 | Muharram, 21 | 26-December-641 | Sunday |
| 16 | Muharram, 21 | 27-December-641 | Monday |
| 17 | Muharram, 21 | 28-December-641 | Tuesday |
| 18 | Muharram, 21 | 29-December-641 | Wednesday |
| 19 | Muharram, 21 | 30-December-641 | Thursday |
| 20 | Muharram, 21 | 31-December-641 | Friday |
| 21 | Muharram, 21 | 1-January-642 | Saturday |
| 22 | Muharram, 21 | 2-January-642 | Sunday |
| 23 | Muharram, 21 | 3-January-642 | Monday |
| 24 | Muharram, 21 | 4-January-642 | Tuesday |
| 25 | Muharram, 21 | 5-January-642 | Wednesday |
| 26 | Muharram, 21 | 6-January-642 | Thursday |
| 27 | Muharram, 21 | 7-January-642 | Friday |
| 28 | Muharram, 21 | 8-January-642 | Saturday |
| 29 | Muharram, 21 | 9-January-642 | Sunday |
| 30 | Muharram, 21 | 10-January-642 | Monday |
Baseline: Tabular (Kuwaiti) Hijri. Local moon-sighting may vary ±1 day.