| Millennium: | 2nd millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 1612 by topic |
|---|
| Arts and science |
| Leaders |
| Birth and death categories |
| Births – Deaths |
| Establishments and disestablishments categories |
| Establishments – Disestablishments |
| Works category |
| Gregorian calendar | 1612 MDCXII |
| Ab urbe condita | 2365 |
| Armenian calendar | 1061 ԹՎ ՌԿԱ |
| Assyrian calendar | 6362 |
| Balinese saka calendar | 1533–1534 |
| Bengali calendar | 1019 |
| Berber calendar | 2562 |
| English Regnal year | 9 Ja. 1 – 10 Ja. 1 |
| Buddhist calendar | 2156 |
| Burmese calendar | 974 |
| Byzantine calendar | 7120–7121 |
| Chinese calendar | 辛亥年 (Metal Pig) 4309 or 4102 — to — 壬子年 (Water Rat) 4310 or 4103 |
| Coptic calendar | 1328–1329 |
| Discordian calendar | 2778 |
| Ethiopian calendar | 1604–1605 |
| Hebrew calendar | 5372–5373 |
| Hindu calendars | |
| - Vikram Samvat | 1668–1669 |
| - Shaka Samvat | 1533–1534 |
| - Kali Yuga | 4712–4713 |
| Holocene calendar | 11612 |
| Igbo calendar | 612–613 |
| Iranian calendar | 990–991 |
| Islamic calendar | 1020–1021 |
| Japanese calendar | Keichō 17 (慶長１７年) |
| Javanese calendar | 1532–1533 |
| Julian calendar | Gregorian minus 10 days |
| Korean calendar | 3945 |
| Minguo calendar | 300 before ROC 民前300年 |
| Nanakshahi calendar | 144 |
| Thai solar calendar | 2154–2155 |
| Tibetan calendar | 阴金猪年 (female Iron-Pig) 1738 or 1357 or 585 — to — 阳水鼠年 (male Water-Rat) 1739 or 1358 or 586 |
1612 (MDCXII) was a leap year starting on Sunday of the Gregorian calendar and a leap year starting on Wednesday of the Julian calendar, the 1612th year of the Common Era (CE) and Anno Domini (AD) designations, the 612th year of the 2nd millennium, the 12th year of the 17th century, and the 3rd year of the 1610s decade. As of the start of 1612, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.