309 BC

Millennium: 1st millennium BC
Centuries:
Decades:
Years:
309 BC in various calendars
Gregorian calendar309 BC
CCCIX BC
Ab urbe condita445
Ancient Egypt eraXXXIII dynasty, 15
- PharaohPtolemy I Soter, 15
Ancient Greek era117th Olympiad, year 4
Assyrian calendar4442
Balinese saka calendarN/A
Bengali calendar−901
Berber calendar642
Buddhist calendar236
Burmese calendar−946
Byzantine calendar5200–5201
Chinese calendar辛亥年 (Metal Pig)
2389 or 2182
    — to —
壬子年 (Water Rat)
2390 or 2183
Coptic calendar−592 – −591
Discordian calendar858
Ethiopian calendar−316 – −315
Hebrew calendar3452–3453
Hindu calendars
 - Vikram Samvat−252 – −251
 - Shaka SamvatN/A
 - Kali Yuga2792–2793
Holocene calendar9692
Iranian calendar930 BP – 929 BP
Islamic calendar959 BH – 958 BH
Javanese calendarN/A
Julian calendarN/A
Korean calendar2025
Minguo calendar2220 before ROC
民前2220年
Nanakshahi calendar−1776
Seleucid era3/4 AG
Thai solar calendar234–235
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.