| Millennium: | 3rd Millennium BC |
|---|---|
| Centuries: | 28th cent. BC – 27th cent. BC – 26th cent. BC |
| Decades: | 2690s BC 2680s BC 2670s BC – 2660s BC – 2650s BC 2640s BC 2630s BC |
| Years: | 2665 BC 2664 BC 2663 BC – 2662 BC – 2661 BC 2660 BC 2659 BC |
| Gregorian calendar | 2662 MMDCLXII |
| Ab urbe condita | 3415 |
| Armenian calendar | 2111 ԹՎ ՍՃԺԱ |
| Assyrian calendar | 7412 |
| Bahá'í calendar | 818–819 |
| Bengali calendar | 2069 |
| Berber calendar | 3612 |
| British Regnal year | N/A |
| Buddhist calendar | 3206 |
| Burmese calendar | 2024 |
| Byzantine calendar | 8170–8171 |
| Chinese calendar | 辛巳年 (Metal Snake) 5358 or 5298 — to — 壬午年 (Water Horse) 5359 or 5299 |
| Coptic calendar | 2378–2379 |
| Discordian calendar | 3828 |
| Ethiopian calendar | 2654–2655 |
| Hebrew calendar | 6422–6423 |
| Hindu calendars | |
| - Vikram Samvat | 2718–2719 |
| - Shaka Samvat | 2583–2584 |
| - Kali Yuga | 5762–5763 |
| Holocene calendar | 12662 |
| Igbo calendar | 1662–1663 |
| Iranian calendar | 2040–2041 |
| Islamic calendar | 2103–2104 |
| Japanese calendar | Heisei 674 (平成６７４年) |
| Javanese calendar | 2614–2615 |
| Juche calendar | 751 |
| Julian calendar | Gregorian minus 18 days |
| Korean calendar | 4995 |
| Minguo calendar | ROC 751 民國751年 |
| Nanakshahi calendar | 1194 |
| Thai solar calendar | 3205 |
| Unix time | 21837427200–21868963199 |
The year 2662 BC