| Millennium: | 2nd Millennium |
|---|---|
| Centuries: | 18th cent. – 19th cent. – 20th cent. |
| Decades: | 1770s 1780s 1790s – 1800s – 1810s 1820s 1830s |
| Years: | 1805 1806 1807 – 1808 – 1809 1810 1811 |
| Gregorian calendar | 1808 MDCCCVIII |
| Ab urbe condita | 2561 |
| Armenian calendar | 1257 ԹՎ ՌՄԾԷ |
| Assyrian calendar | 6558 |
| Bengali calendar | 1215 |
| Berber calendar | 2758 |
| British Regnal year | 48 Geo. 3 – 49 Geo. 3 |
| Buddhist calendar | 2352 |
| Burmese calendar | 1170 |
| Byzantine calendar | 7316–7317 |
| Chinese calendar | 丁卯年 (Fire Rabbit) 4504 or 4444 — to — 戊辰年 (Earth Dragon) 4505 or 4445 |
| Coptic calendar | 1524–1525 |
| Discordian calendar | 2974 |
| Ethiopian calendar | 1800–1801 |
| Hebrew calendar | 5568–5569 |
| Hindu calendars | |
| - Vikram Samvat | 1864–1865 |
| - Shaka Samvat | 1729–1730 |
| - Kali Yuga | 4908–4909 |
| Holocene calendar | 11808 |
| Igbo calendar | 808–809 |
| Iranian calendar | 1186–1187 |
| Islamic calendar | 1222–1223 |
| Japanese calendar | Bunka 5 (文化５年) |
| Javanese calendar | 1734–1735 |
| Julian calendar | Gregorian minus 12 days |
| Korean calendar | 4141 |
| Minguo calendar | 104 before ROC 民前104年 |
| Nanakshahi calendar | 340 |
| Thai solar calendar | 2350–2351 |
The year 1808 BC
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