Islamic Hijri Calendar For 1821 CE
| Western Month | Converts To Hijri Month |
|---|
| Jan 1821 | Rabi al-awwal, 1236 |
| Feb 1821 | Rabi al-thani, 1236 |
| Mar 1821 | Jumada al-awwal, 1236 |
| Apr 1821 | Jumada al-thani, 1236 |
| May 1821 | Rajab, 1236 |
| Jun 1821 | Shaban, 1236 |
| Jul 1821 | Shawwal, 1236 |
| Aug 1821 | Dhu al-Qidah, 1236 |
| Sep 1821 | Dhu al-Hijjah, 1236 |
| Oct 1821 | Muharram, 1237 |
| Nov 1821 | Safar, 1237 |
| Dec 1821 | Rabi al-awwal, 1237 |