Back 309 v.C. Afrikaans 309 ق م Arabic 309 ق م ARZ 309 e.C. AST E.ə. 309 Azerbaijani 309 v. Kr. BAR 309 да н.э. Byelorussian 309 да н. э. BE-X-OLD 309 г. пр.н.е. Bulgarian 309. p. n. e. BS
| Millennium: | 1st millennium BC |
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| Centuries: | |
| Decades: | |
| Years: |
| 309 BC by topic |
| Politics |
|---|
| Categories |
| Gregorian calendar | 309 BC CCCIX BC |
| Ab urbe condita | 445 |
| Ancient Egypt era | XXXIII dynasty, 15 |
| - Pharaoh | Ptolemy I Soter, 15 |
| Ancient Greek era | 117th Olympiad, year 4 |
| Assyrian calendar | 4442 |
| Balinese saka calendar | N/A |
| Bengali calendar | −901 |
| Berber calendar | 642 |
| Buddhist calendar | 236 |
| Burmese calendar | −946 |
| Byzantine calendar | 5200–5201 |
| Chinese calendar | 辛亥年 (Metal Pig) 2389 or 2182 — to — 壬子年 (Water Rat) 2390 or 2183 |
| Coptic calendar | −592 – −591 |
| Discordian calendar | 858 |
| Ethiopian calendar | −316 – −315 |
| Hebrew calendar | 3452–3453 |
| Hindu calendars | |
| - Vikram Samvat | −252 – −251 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2792–2793 |
| Holocene calendar | 9692 |
| Iranian calendar | 930 BP – 929 BP |
| Islamic calendar | 959 BH – 958 BH |
| Javanese calendar | N/A |
| Julian calendar | N/A |
| Korean calendar | 2025 |
| Minguo calendar | 2220 before ROC 民前2220年 |
| Nanakshahi calendar | −1776 |
| Seleucid era | 3/4 AG |
| Thai solar calendar | 234–235 |
| Tibetan calendar | 阴金猪年 (female Iron-Pig) −182 or −563 or −1335 — to — 阳水鼠年 (male Water-Rat) −181 or −562 or −1334 |
Year 309 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Dictatorship of Cursor (or, less frequently, year 445 Ab urbe condita). The denomination 309 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.