240 BC

240 BC in various calendars
Gregorian calendar	240 BC; CCXL BC
Ab urbe condita	514
Ancient Egypt era	XXXIII dynasty, 84
- Pharaoh	Ptolemy III Euergetes, 7
Ancient Greek era	135th Olympiad (victor)¹
Assyrian calendar	4511
Balinese saka calendar	N/A
Bengali calendar	−832
Berber calendar	711
Buddhist calendar	305
Burmese calendar	−877
Byzantine calendar	5269–5270
Chinese calendar	庚申年 (Metal Monkey); 2458 or 2251; — to —; 辛酉年 (Metal Rooster); 2459 or 2252
Coptic calendar	−523 – −522
Discordian calendar	927
Ethiopian calendar	−247 – −246
Hebrew calendar	3521–3522
Hindu calendars
- Vikram Samvat	−183 – −182
- Shaka Samvat	N/A
- Kali Yuga	2861–2862
Holocene calendar	9761
Iranian calendar	861 BP – 860 BP
Islamic calendar	887 BH – 886 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	2094
Minguo calendar	2151 before ROC; 民前2151年
Nanakshahi calendar	−1707
Seleucid era	72/73 AG
Thai solar calendar	303–304
Tibetan calendar	阳金猴年; (male Iron-Monkey); −113 or −494 or −1266; — to —; 阴金鸡年; (female Iron-Rooster); −112 or −493 or −1265

Millennium:	1st millennium BC
Centuries:	4th century BC; 3rd century BC ; 2nd century BC;
Decades:	260s BC; 250s BC; 240s BC ; 230s BC; 220s BC;
Years:	243 BC; 242 BC; 241 BC; 240 BC ; 239 BC; 238 BC; 237 BC;

Year 240 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Centho and Tuditanus (or, less frequently, year 514 Ab urbe condita). The denomination 240 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	240 BC CCXL BC
Ab urbe condita	514
Ancient Egypt era	XXXIII dynasty, 84
- Pharaoh	Ptolemy III Euergetes, 7
Ancient Greek era	135th Olympiad (victor )¹
Assyrian calendar	4511
Balinese saka calendar	N/A
Bengali calendar	−832
Berber calendar	711
Buddhist calendar	305
Burmese calendar	−877
Byzantine calendar	5269–5270
Chinese calendar	庚申年 (Metal Monkey) 2458 or 2251 — to — 辛酉年 (Metal Rooster) 2459 or 2252
Coptic calendar	−523 – −522
Discordian calendar	927
Ethiopian calendar	−247 – −246
Hebrew calendar	3521–3522
Hindu calendars
- Vikram Samvat	−183 – −182
- Shaka Samvat	N/A
- Kali Yuga	2861–2862
Holocene calendar	9761
Iranian calendar	861 BP – 860 BP
Islamic calendar	887 BH – 886 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	2094
Minguo calendar	2151 before ROC 民前2151年
Nanakshahi calendar	−1707
Seleucid era	72/73 AG
Thai solar calendar	303–304
Tibetan calendar	阳金猴年 (male Iron-Monkey) −113 or −494 or −1266 — to — 阴金鸡年 (female Iron-Rooster) −112 or −493 or −1265