| Millennium: | 1st millennium BC |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| Gregorian calendar | 727 BC DCCXXVI BC |
| Ab urbe condita | 27 |
| Ancient Egypt era | XXV dynasty, 26 |
| - Pharaoh | Piye, 26 |
| Ancient Greek era | 13th Olympiad, year 2 |
| Assyrian calendar | 4024 |
| Bengali calendar | −1319 |
| Berber calendar | 224 |
| Buddhist calendar | −182 |
| Burmese calendar | −1364 |
| Byzantine calendar | 4782–4783 |
| Chinese calendar |
癸丑年 (Water Ox) 1970 or 1910 — to — 甲寅年 (Wood Tiger) 1971 or 1911 |
| Coptic calendar | −1010 – −1009 |
| Discordian calendar | 440 |
| Ethiopian calendar | −734 – −733 |
| Hebrew calendar | 3034–3035 |
| Hindu calendars | |
| - Vikram Samvat | −670 – −669 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2374–2375 |
| Holocene calendar | 9274 |
| Iranian calendar | 1348 BP – 1347 BP |
| Islamic calendar | 1389 BH – 1388 BH |
| Javanese calendar | N/A |
| Julian calendar | N/A |
| Korean calendar | 1607 |
| Minguo calendar | 2638 before ROC 民前2638年 |
| Nanakshahi calendar | −2194 |
| Thai solar calendar | −184 – −183 |