| Millennium: | 4th Millennium BC |
|---|---|
| Centuries: | 40th cent. BC – 39th cent. BC – 38th cent. BC |
| Decades: | 3850s BC 3840s BC 3830s BC – 3820s BC – 3810s BC 3800s BC 3790s BC |
| Years: | 3825 BC 3824 BC 3823 BC – 3822 BC – 3821 BC 3820 BC 3819 BC |
| Gregorian calendar | 3822 MMMDCCCXXII |
| Ab urbe condita | 4575 |
| Armenian calendar | 3271 ԹՎ ՎՄՀԱ |
| Assyrian calendar | 8572 |
| Bahá'í calendar | 1978–1979 |
| Bengali calendar | 3229 |
| Berber calendar | 4772 |
| British Regnal year | N/A |
| Buddhist calendar | 4366 |
| Burmese calendar | 3184 |
| Byzantine calendar | 9330–9331 |
| Chinese calendar | 辛丑年 (Metal Ox) 6518 or 6458 — to — 壬寅年 (Water Tiger) 6519 or 6459 |
| Coptic calendar | 3538–3539 |
| Discordian calendar | 4988 |
| Ethiopian calendar | 3814–3815 |
| Hebrew calendar | 7582–7583 |
| Hindu calendars | |
| - Vikram Samvat | 3878–3879 |
| - Shaka Samvat | 3743–3744 |
| - Kali Yuga | 6922–6923 |
| Holocene calendar | 13822 |
| Igbo calendar | 2822–2823 |
| Iranian calendar | 3200–3201 |
| Islamic calendar | 3298–3299 |
| Japanese calendar | Heisei 1834 (平成１８３４年) |
| Javanese calendar | 3810–3811 |
| Juche calendar | 1911 |
| Julian calendar | Gregorian minus 27 days |
| Korean calendar | 6155 |
| Minguo calendar | ROC 1911 民國1911年 |
| Nanakshahi calendar | 2354 |
| Thai solar calendar | 4365 |
| Unix time | 58443465600–58475001599 |
The year 3822 BC