503 BC

503 BC in various calendars
Gregorian calendar	503 BC; DIII BC
Ab urbe condita	251
Ancient Egypt era	XXVII dynasty, 23
- Pharaoh	Darius I of Persia, 19
Ancient Greek era	69th Olympiad, year 2
Assyrian calendar	4248
Balinese saka calendar	N/A
Bengali calendar	−1095
Berber calendar	448
Buddhist calendar	42
Burmese calendar	−1140
Byzantine calendar	5006–5007
Chinese calendar	丁酉年 (Fire Rooster); 2195 or 1988; — to —; 戊戌年 (Earth Dog); 2196 or 1989
Coptic calendar	−786 – −785
Discordian calendar	664
Ethiopian calendar	−510 – −509
Hebrew calendar	3258–3259
Hindu calendars
- Vikram Samvat	−446 – −445
- Shaka Samvat	N/A
- Kali Yuga	2598–2599
Holocene calendar	9498
Iranian calendar	1124 BP – 1123 BP
Islamic calendar	1159 BH – 1158 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	1831
Minguo calendar	2414 before ROC; 民前2414年
Nanakshahi calendar	−1970
Thai solar calendar	40–41
Tibetan calendar	阴火鸡年; (female Fire-Rooster); −376 or −757 or −1529; — to —; 阳土狗年; (male Earth-Dog); −375 or −756 or −1528

Millennium:	1st millennium BC
Centuries:	7th century BC; 6th century BC ; 5th century BC;
Decades:	520s BC; 510s BC; 500s BC ; 490s BC; 480s BC;
Years:	506 BC; 505 BC; 504 BC; 503 BC ; 502 BC; 501 BC; 500 BC;

The year 503 BC was a year of the pre-Julian Roman calendar. In the Roman Empire it was known as the Year of the Consulship of Lanatus and Tubertus (or, less frequently, year 251 Ab urbe condita). The denomination 503 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	503 BC DIII BC
Ab urbe condita	251
Ancient Egypt era	XXVII dynasty, 23
- Pharaoh	Darius I of Persia, 19
Ancient Greek era	69th Olympiad, year 2
Assyrian calendar	4248
Balinese saka calendar	N/A
Bengali calendar	−1095
Berber calendar	448
Buddhist calendar	42
Burmese calendar	−1140
Byzantine calendar	5006–5007
Chinese calendar	丁酉年 (Fire Rooster) 2195 or 1988 — to — 戊戌年 (Earth Dog) 2196 or 1989
Coptic calendar	−786 – −785
Discordian calendar	664
Ethiopian calendar	−510 – −509
Hebrew calendar	3258–3259
Hindu calendars
- Vikram Samvat	−446 – −445
- Shaka Samvat	N/A
- Kali Yuga	2598–2599
Holocene calendar	9498
Iranian calendar	1124 BP – 1123 BP
Islamic calendar	1159 BH – 1158 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	1831
Minguo calendar	2414 before ROC 民前2414年
Nanakshahi calendar	−1970
Thai solar calendar	40–41
Tibetan calendar	阴火鸡年 (female Fire-Rooster) −376 or −757 or −1529 — to — 阳土狗年 (male Earth-Dog) −375 or −756 or −1528