| Millennium: | 1st millennium BC |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| Gregorian calendar | 720 BC DCCXIX BC |
| Ab urbe condita | 34 |
| Ancient Egypt era | XXV dynasty, 33 |
| - Pharaoh | Shabaka, 2 |
| Ancient Greek era | 15th Olympiad (victor)¹ |
| Assyrian calendar | 4031 |
| Bengali calendar | −1312 |
| Berber calendar | 231 |
| Buddhist calendar | −175 |
| Burmese calendar | −1357 |
| Byzantine calendar | 4789–4790 |
| Chinese calendar |
庚申年 (Metal Monkey) 1977 or 1917 — to — 辛酉年 (Metal Rooster) 1978 or 1918 |
| Coptic calendar | −1003 – −1002 |
| Discordian calendar | 447 |
| Ethiopian calendar | −727 – −726 |
| Hebrew calendar | 3041–3042 |
| Hindu calendars | |
| - Vikram Samvat | −663 – −662 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2381–2382 |
| Holocene calendar | 9281 |
| Iranian calendar | 1341 BP – 1340 BP |
| Islamic calendar | 1382 BH – 1381 BH |
| Javanese calendar | N/A |
| Julian calendar | N/A |
| Korean calendar | 1614 |
| Minguo calendar | 2631 before ROC 民前2631年 |
| Nanakshahi calendar | −2187 |
| Thai solar calendar | −177 – −176 |