12 BC

12 BC in various calendars
Gregorian calendar	12 BC; XII BC
Ab urbe condita	742
Ancient Greek era	192nd Olympiad (victor)¹
Assyrian calendar	4739
Balinese saka calendar	N/A
Bengali calendar	−604
Berber calendar	939
Buddhist calendar	533
Burmese calendar	−649
Byzantine calendar	5497–5498
Chinese calendar	戊申年 (Earth Monkey); 2686 or 2479; — to —; 己酉年 (Earth Rooster); 2687 or 2480
Coptic calendar	−295 – −294
Discordian calendar	1155
Ethiopian calendar	−19 – −18
Hebrew calendar	3749–3750
Hindu calendars
- Vikram Samvat	45–46
- Shaka Samvat	N/A
- Kali Yuga	3089–3090
Holocene calendar	9989
Iranian calendar	633 BP – 632 BP
Islamic calendar	652 BH – 651 BH
Javanese calendar	N/A
Julian calendar	12 BC; XII BC
Korean calendar	2322
Minguo calendar	1923 before ROC; 民前1923年
Nanakshahi calendar	−1479
Seleucid era	300/301 AG
Thai solar calendar	531–532
Tibetan calendar	阳土猴年; (male Earth-Monkey); 115 or −266 or −1038; — to —; 阴土鸡年; (female Earth-Rooster); 116 or −265 or −1037

Millennium:	1st millennium BC
Centuries:	2nd century BC; 1st century BC ; 1st century;
Decades:	30s BC; 20s BC; 10s BC ; 0s BC; 0s;
Years:	15 BC; 14 BC; 13 BC; 12 BC ; 11 BC; 10 BC; 9 BC;

Year 12 BC was either a common year starting on Saturday, Sunday or Monday or a leap year starting on Sunday (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 Friday of the Proleptic Julian calendar. At the time, it was known as the Year of the Consulship of Messalla and Quirinius (or, less frequently, year 742 Ab urbe condita). The denomination 12 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	12 BC XII BC
Ab urbe condita	742
Ancient Greek era	192nd Olympiad (victor )¹
Assyrian calendar	4739
Balinese saka calendar	N/A
Bengali calendar	−604
Berber calendar	939
Buddhist calendar	533
Burmese calendar	−649
Byzantine calendar	5497–5498
Chinese calendar	戊申年 (Earth Monkey) 2686 or 2479 — to — 己酉年 (Earth Rooster) 2687 or 2480
Coptic calendar	−295 – −294
Discordian calendar	1155
Ethiopian calendar	−19 – −18
Hebrew calendar	3749–3750
Hindu calendars
- Vikram Samvat	45–46
- Shaka Samvat	N/A
- Kali Yuga	3089–3090
Holocene calendar	9989
Iranian calendar	633 BP – 632 BP
Islamic calendar	652 BH – 651 BH
Javanese calendar	N/A
Julian calendar	12 BC XII BC
Korean calendar	2322
Minguo calendar	1923 before ROC 民前1923年
Nanakshahi calendar	−1479
Seleucid era	300/301 AG
Thai solar calendar	531–532
Tibetan calendar	阳土猴年 (male Earth-Monkey) 115 or −266 or −1038 — to — 阴土鸡年 (female Earth-Rooster) 116 or −265 or −1037