Back 312 v.C. Afrikaans 312 ق م Arabic 312 ق م ARZ 312 e.C. AST E.ə. 312 Azerbaijani 312 v. Kr. BAR 312 да н.э. Byelorussian 312 да н. э. BE-X-OLD 312 г. пр.н.е. Bulgarian 312. p. n. e. BS
| Millennium: | 1st millennium BC |
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| Years: |
| 312 BC by topic |
| Politics |
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| Categories |
| Gregorian calendar | 312 BC CCCXII BC |
| Ab urbe condita | 442 |
| Ancient Egypt era | XXXIII dynasty, 12 |
| - Pharaoh | Ptolemy I Soter, 12 |
| Ancient Greek era | 117th Olympiad (victor)¹ |
| Assyrian calendar | 4439 |
| Balinese saka calendar | N/A |
| Bengali calendar | −904 |
| Berber calendar | 639 |
| Buddhist calendar | 233 |
| Burmese calendar | −949 |
| Byzantine calendar | 5197–5198 |
| Chinese calendar | 戊申年 (Earth Monkey) 2386 or 2179 — to — 己酉年 (Earth Rooster) 2387 or 2180 |
| Coptic calendar | −595 – −594 |
| Discordian calendar | 855 |
| Ethiopian calendar | −319 – −318 |
| Hebrew calendar | 3449–3450 |
| Hindu calendars | |
| - Vikram Samvat | −255 – −254 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2789–2790 |
| Holocene calendar | 9689 |
| Iranian calendar | 933 BP – 932 BP |
| Islamic calendar | 962 BH – 961 BH |
| Javanese calendar | N/A |
| Julian calendar | N/A |
| Korean calendar | 2022 |
| Minguo calendar | 2223 before ROC 民前2223年 |
| Nanakshahi calendar | −1779 |
| Seleucid era | 0/1 AG |
| Thai solar calendar | 231–232 |
| Tibetan calendar | 阳土猴年 (male Earth-Monkey) −185 or −566 or −1338 — to — 阴土鸡年 (female Earth-Rooster) −184 or −565 or −1337 |
Year 312 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Corvus and Mus (or, less frequently, year 442 Ab urbe condita). The denomination 312 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.