| Millennium: | 3rd Millennium BC |
|---|---|
| Centuries: | 27th cent. BC – 26th cent. BC – 25th cent. BC |
| Decades: | 2610s BC 2600s BC 2590s BC – 2580s BC – 2570s BC 2560s BC 2550s BC |
| Years: | 2583 BC 2582 BC 2581 BC – 2580 BC – 2579 BC 2578 BC 2577 BC |
| Gregorian calendar | 2580 MMDLXXX |
| Ab urbe condita | 3333 |
| Armenian calendar | 2029 ԹՎ ՍԻԹ |
| Assyrian calendar | 7330 |
| Bahá'í calendar | 736–737 |
| Bengali calendar | 1987 |
| Berber calendar | 3530 |
| British Regnal year | N/A |
| Buddhist calendar | 3124 |
| Burmese calendar | 1942 |
| Byzantine calendar | 8088–8089 |
| Chinese calendar | 己未年 (Earth Goat) 5276 or 5216 — to — 庚申年 (Metal Monkey) 5277 or 5217 |
| Coptic calendar | 2296–2297 |
| Discordian calendar | 3746 |
| Ethiopian calendar | 2572–2573 |
| Hebrew calendar | 6340–6341 |
| Hindu calendars | |
| - Vikram Samvat | 2636–2637 |
| - Shaka Samvat | 2501–2502 |
| - Kali Yuga | 5680–5681 |
| Holocene calendar | 12580 |
| Igbo calendar | 1580–1581 |
| Iranian calendar | 1958–1959 |
| Islamic calendar | 2018–2019 |
| Japanese calendar | Heisei 592 (平成５９２年) |
| Javanese calendar | 2530–2531 |
| Juche calendar | 669 |
| Julian calendar | Gregorian minus 17 days |
| Korean calendar | 4913 |
| Minguo calendar | ROC 669 民國669年 |
| Nanakshahi calendar | 1112 |
| Thai solar calendar | 3123 |
| Unix time | 19249747200–19281369599 |
The year 2580 BC