311 BC

311 BC in various calendars
Gregorian calendar	311 BC; CCCXI BC
Ab urbe condita	443
Ancient Egypt era	XXXIII dynasty, 13
- Pharaoh	Ptolemy I Soter, 13
Ancient Greek era	117th Olympiad, year 2
Assyrian calendar	4440
Balinese saka calendar	N/A
Bengali calendar	−903
Berber calendar	640
Buddhist calendar	234
Burmese calendar	−948
Byzantine calendar	5198–5199
Chinese calendar	己酉年 (Earth Rooster); 2387 or 2180; — to —; 庚戌年 (Metal Dog); 2388 or 2181
Coptic calendar	−594 – −593
Discordian calendar	856
Ethiopian calendar	−318 – −317
Hebrew calendar	3450–3451
Hindu calendars
- Vikram Samvat	−254 – −253
- Shaka Samvat	N/A
- Kali Yuga	2790–2791
Holocene calendar	9690
Iranian calendar	932 BP – 931 BP
Islamic calendar	961 BH – 960 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	2023
Minguo calendar	2222 before ROC; 民前2222年
Nanakshahi calendar	−1778
Seleucid era	1/2 AG
Thai solar calendar	232–233
Tibetan calendar	阴土鸡年; (female Earth-Rooster); −184 or −565 or −1337; — to —; 阳金狗年; (male Iron-Dog); −183 or −564 or −1336

Millennium:	1st millennium BC
Centuries:	5th century BC; 4th century BC ; 3rd century BC;
Decades:	330s BC; 320s BC; 310s BC ; 300s BC; 290s BC;
Years:	314 BC; 313 BC; 312 BC; 311 BC ; 310 BC; 309 BC; 308 BC;

Year 311 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Brutus and Barbula (or, less frequently, year 443 Ab urbe condita). The denomination 311 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.

Gregorian calendar	311 BC CCCXI BC
Ab urbe condita	443
Ancient Egypt era	XXXIII dynasty, 13
- Pharaoh	Ptolemy I Soter, 13
Ancient Greek era	117th Olympiad, year 2
Assyrian calendar	4440
Balinese saka calendar	N/A
Bengali calendar	−903
Berber calendar	640
Buddhist calendar	234
Burmese calendar	−948
Byzantine calendar	5198–5199
Chinese calendar	己酉年 (Earth Rooster) 2387 or 2180 — to — 庚戌年 (Metal Dog) 2388 or 2181
Coptic calendar	−594 – −593
Discordian calendar	856
Ethiopian calendar	−318 – −317
Hebrew calendar	3450–3451
Hindu calendars
- Vikram Samvat	−254 – −253
- Shaka Samvat	N/A
- Kali Yuga	2790–2791
Holocene calendar	9690
Iranian calendar	932 BP – 931 BP
Islamic calendar	961 BH – 960 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	2023
Minguo calendar	2222 before ROC 民前2222年
Nanakshahi calendar	−1778
Seleucid era	1/2 AG
Thai solar calendar	232–233
Tibetan calendar	阴土鸡年 (female Earth-Rooster) −184 or −565 or −1337 — to — 阳金狗年 (male Iron-Dog) −183 or −564 or −1336