| Millennium: | 3rd Millennium BC |
|---|---|
| Centuries: | 23rd cent. BC – 22nd cent. BC – 21st cent. BC |
| Decades: | 2150s BC 2140s BC 2130s BC – 2120s BC – 2110s BC 2100s BC 2090s BC |
| Years: | 2127 BC 2126 BC 2125 BC – 2124 BC – 2123 BC 2122 BC 2121 BC |
| Gregorian calendar | 2124 MMCXXIV |
| Ab urbe condita | 2877 |
| Armenian calendar | 1573 ԹՎ ՌՇՀԳ |
| Assyrian calendar | 6874 |
| Bahá'í calendar | 280–281 |
| Bengali calendar | 1531 |
| Berber calendar | 3074 |
| British Regnal year | N/A |
| Buddhist calendar | 2668 |
| Burmese calendar | 1486 |
| Byzantine calendar | 7632–7633 |
| Chinese calendar | 癸未年 (Water Goat) 4820 or 4760 — to — 甲申年 (Wood Monkey) 4821 or 4761 |
| Coptic calendar | 1840–1841 |
| Discordian calendar | 3290 |
| Ethiopian calendar | 2116–2117 |
| Hebrew calendar | 5884–5885 |
| Hindu calendars | |
| - Vikram Samvat | 2180–2181 |
| - Shaka Samvat | 2045–2046 |
| - Kali Yuga | 5224–5225 |
| Holocene calendar | 12124 |
| Igbo calendar | 1124–1125 |
| Iranian calendar | 1502–1503 |
| Islamic calendar | 1548–1549 |
| Japanese calendar | Heisei 136 (平成１３６年) |
| Javanese calendar | 2060–2061 |
| Juche calendar | 213 |
| Julian calendar | Gregorian minus 14 days |
| Korean calendar | 4457 |
| Minguo calendar | ROC 213 民國213年 |
| Nanakshahi calendar | 656 |
| Thai solar calendar | 2667 |
| Unix time | 4859740800–4891363199 |
The year 2124 BC