| Millennium: | 4th Millennium BC |
|---|---|
| Centuries: | 34th cent. BC – 33rd cent. BC – 32nd cent. BC |
| Decades: | 3290s BC 3280s BC 3270s BC – 3260s BC – 3250s BC 3240s BC 3230s BC |
| Years: | 3271 BC 3270 BC 3269 BC – 3268 BC – 3267 BC 3266 BC 3265 BC |
| Gregorian calendar | 3268 MMMCCLXVIII |
| Ab urbe condita | 4021 |
| Armenian calendar | 2717 ԹՎ ՍՉԺԷ |
| Assyrian calendar | 8018 |
| Bahá'í calendar | 1424–1425 |
| Bengali calendar | 2675 |
| Berber calendar | 4218 |
| British Regnal year | N/A |
| Buddhist calendar | 3812 |
| Burmese calendar | 2630 |
| Byzantine calendar | 8776–8777 |
| Chinese calendar | 丁亥年 (Fire Pig) 5964 or 5904 — to — 戊子年 (Earth Rat) 5965 or 5905 |
| Coptic calendar | 2984–2985 |
| Discordian calendar | 4434 |
| Ethiopian calendar | 3260–3261 |
| Hebrew calendar | 7028–7029 |
| Hindu calendars | |
| - Vikram Samvat | 3324–3325 |
| - Shaka Samvat | 3189–3190 |
| - Kali Yuga | 6368–6369 |
| Holocene calendar | 13268 |
| Igbo calendar | 2268–2269 |
| Iranian calendar | 2646–2647 |
| Islamic calendar | 2727–2728 |
| Japanese calendar | Heisei 1280 (平成１２８０年) |
| Javanese calendar | 3239–3240 |
| Juche calendar | 1357 |
| Julian calendar | Gregorian minus 22 days |
| Korean calendar | 5601 |
| Minguo calendar | ROC 1357 民國1357年 |
| Nanakshahi calendar | 1800 |
| Thai solar calendar | 3811 |
| Unix time | 40960944000–40992566399 |
The year 3268 BC