| Millennium: | 1st millennium BC |
| Centuries: | |
| Decades: | |
| Years: | |
| Categories: |
| Gregorian calendar | 488 BC CDLXXXVII BC |
| Ab urbe condita | 266 |
| Ancient Egypt era | XXVII dynasty, 38 |
| - Pharaoh | Darius I of Persia, 34 |
| Ancient Greek era | 73rd Olympiad (victor)¹ |
| Assyrian calendar | 4263 |
| Balinese saka calendar | N/A |
| Bengali calendar | −1080 |
| Berber calendar | 463 |
| Buddhist calendar | 57 |
| Burmese calendar | −1125 |
| Byzantine calendar | 5021–5022 |
| Chinese calendar |
壬子年 (Water Rat) 2209 or 2149 — to — 癸丑年 (Water Ox) 2210 or 2150 |
| Coptic calendar | −771 – −770 |
| Discordian calendar | 679 |
| Ethiopian calendar | −495 – −494 |
| Hebrew calendar | 3273–3274 |
| Hindu calendars | |
| - Vikram Samvat | −431 – −430 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2613–2614 |
| Holocene calendar | 9513 |
| Iranian calendar | 1109 BP – 1108 BP |
| Islamic calendar | 1143 BH – 1142 BH |
| Javanese calendar | N/A |
| Julian calendar | N/A |
| Korean calendar | 1846 |
| Minguo calendar | 2399 before ROC 民前2399年 |
| Nanakshahi calendar | −1955 |
| Thai solar calendar | 55–56 |