| Millennium: | 1st Millennium BC |
|---|---|
| Centuries: | 5th cent. BC – 4th cent. BC – 3rd cent. BC |
| Decades: | 350s BC 340s BC 330s BC – 320s BC – 310s BC 300s BC 290s BC |
| Years: | 326 BC 325 BC 324 BC – 323 BC – 322 BC 321 BC 320 BC |
| Gregorian calendar | 323 CCCXXIII |
| Ab urbe condita | 1076 |
| Assyrian calendar | 5073 |
| Bengali calendar | −270 |
| Berber calendar | 1273 |
| Buddhist calendar | 867 |
| Burmese calendar | −315 |
| Byzantine calendar | 5831–5832 |
| Chinese calendar | 壬午年 (Water Horse) 3019 or 2959 — to — 癸未年 (Water Goat) 3020 or 2960 |
| Coptic calendar | 39–40 |
| Discordian calendar | 1489 |
| Ethiopian calendar | 315–316 |
| Hebrew calendar | 4083–4084 |
| Hindu calendars | |
| - Vikram Samvat | 379–380 |
| - Shaka Samvat | 244–245 |
| - Kali Yuga | 3423–3424 |
| Holocene calendar | 10323 |
| Iranian calendar | 299 BP – 298 BP |
| Islamic calendar | 308 BH – 307 BH |
| Javanese calendar | 204–205 |
| Julian calendar | 323 CCCXXIII |
| Korean calendar | 2656 |
| Minguo calendar | 1589 before ROC 民前1589年 |
| Nanakshahi calendar | −1145 |
| Seleucid era | 634/635 AG |
| Thai solar calendar | 865–866 |
The year 323 BC