4 BC

4 BC in various calendars
Gregorian calendar	4 BC; IV BC
Ab urbe condita	750
Ancient Greek era	194th Olympiad (victor)¹
Assyrian calendar	4747
Balinese saka calendar	N/A
Bengali calendar	−596
Berber calendar	947
Buddhist calendar	541
Burmese calendar	−641
Byzantine calendar	5505–5506
Chinese calendar	丙辰年 (Fire Dragon); 2694 or 2487; — to —; 丁巳年 (Fire Snake); 2695 or 2488
Coptic calendar	−287 – −286
Discordian calendar	1163
Ethiopian calendar	−11 – −10
Hebrew calendar	3757–3758
Hindu calendars
- Vikram Samvat	53–54
- Shaka Samvat	N/A
- Kali Yuga	3097–3098
Holocene calendar	9997
Iranian calendar	625 BP – 624 BP
Islamic calendar	644 BH – 643 BH
Javanese calendar	N/A
Julian calendar	4 BC; IV BC
Korean calendar	2330
Minguo calendar	1915 before ROC; 民前1915年
Nanakshahi calendar	−1471
Seleucid era	308/309 AG
Thai solar calendar	539–540
Tibetan calendar	阳火龙年; (male Fire-Dragon); 123 or −258 or −1030; — to —; 阴火蛇年; (female Fire-Snake); 124 or −257 or −1029

Millennium:	1st millennium BC
Centuries:	2nd century BC; 1st century BC ; 1st century;
Decades:	20s BC; 10s BC; 0s BC ; 0s; 10s;
Years:	7 BC; 6 BC; 5 BC; 4 BC ; 3 BC; 2 BC; 1 BC;

Year 4 BC was a common year starting on Tuesday or Wednesday (link will display the full calendar) of the Julian calendar (the sources differ, see leap year error for further information) and a common year starting on Monday of the Proleptic Julian calendar. At the time, it was known as the Year of the Consulship of Sabinus and Rufus (or, less frequently, year 750 Ab urbe condita). The denomination 4 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	4 BC IV BC
Ab urbe condita	750
Ancient Greek era	194th Olympiad (victor )¹
Assyrian calendar	4747
Balinese saka calendar	N/A
Bengali calendar	−596
Berber calendar	947
Buddhist calendar	541
Burmese calendar	−641
Byzantine calendar	5505–5506
Chinese calendar	丙辰年 (Fire Dragon) 2694 or 2487 — to — 丁巳年 (Fire Snake) 2695 or 2488
Coptic calendar	−287 – −286
Discordian calendar	1163
Ethiopian calendar	−11 – −10
Hebrew calendar	3757–3758
Hindu calendars
- Vikram Samvat	53–54
- Shaka Samvat	N/A
- Kali Yuga	3097–3098
Holocene calendar	9997
Iranian calendar	625 BP – 624 BP
Islamic calendar	644 BH – 643 BH
Javanese calendar	N/A
Julian calendar	4 BC IV BC
Korean calendar	2330
Minguo calendar	1915 before ROC 民前1915年
Nanakshahi calendar	−1471
Seleucid era	308/309 AG
Thai solar calendar	539–540
Tibetan calendar	阳火龙年 (male Fire-Dragon) 123 or −258 or −1030 — to — 阴火蛇年 (female Fire-Snake) 124 or −257 or −1029