| Millennium: | 1st millennium BC |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| Gregorian calendar | 650 BC DCXLIX BC |
| Ab urbe condita | 104 |
| Ancient Egypt era | XXVI dynasty, 15 |
| - Pharaoh | Psamtik I, 15 |
| Ancient Greek era | 32nd Olympiad, year 3 |
| Assyrian calendar | 4101 |
| Bengali calendar | −1242 |
| Berber calendar | 301 |
| Buddhist calendar | −105 |
| Burmese calendar | −1287 |
| Byzantine calendar | 4859–4860 |
| Chinese calendar |
庚午年 (Metal Horse) 2047 or 1987 — to — 辛未年 (Metal Goat) 2048 or 1988 |
| Coptic calendar | −933 – −932 |
| Discordian calendar | 517 |
| Ethiopian calendar | −657 – −656 |
| Hebrew calendar | 3111–3112 |
| Hindu calendars | |
| - Vikram Samvat | −593 – −592 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2451–2452 |
| Holocene calendar | 9351 |
| Iranian calendar | 1271 BP – 1270 BP |
| Islamic calendar | 1310 BH – 1309 BH |
| Javanese calendar | N/A |
| Julian calendar | N/A |
| Korean calendar | 1684 |
| Minguo calendar | 2561 before ROC 民前2561年 |
| Nanakshahi calendar | −2117 |
| Thai solar calendar | −107 – −106 |