Back 1680 AB 1680 AF 1680 ALS 1680 እ.ኤ.አ. AM 1680 AN 1680 Arabic 1680 ARY 1680 ARZ 1680 AST 1680 AVK
| Millennium: | 2nd millennium |
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| 1680 by topic |
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| Arts and science |
| Leaders |
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| Births – Deaths |
| Establishments and disestablishments categories |
| Establishments – Disestablishments |
| Works category |
| Gregorian calendar | 1680 MDCLXXX |
| Ab urbe condita | 2433 |
| Armenian calendar | 1129 ԹՎ ՌՃԻԹ |
| Assyrian calendar | 6430 |
| Balinese saka calendar | 1601–1602 |
| Bengali calendar | 1087 |
| Berber calendar | 2630 |
| English Regnal year | 31 Cha. 2 – 32 Cha. 2 |
| Buddhist calendar | 2224 |
| Burmese calendar | 1042 |
| Byzantine calendar | 7188–7189 |
| Chinese calendar | 己未年 (Earth Goat) 4377 or 4170 — to — 庚申年 (Metal Monkey) 4378 or 4171 |
| Coptic calendar | 1396–1397 |
| Discordian calendar | 2846 |
| Ethiopian calendar | 1672–1673 |
| Hebrew calendar | 5440–5441 |
| Hindu calendars | |
| - Vikram Samvat | 1736–1737 |
| - Shaka Samvat | 1601–1602 |
| - Kali Yuga | 4780–4781 |
| Holocene calendar | 11680 |
| Igbo calendar | 680–681 |
| Iranian calendar | 1058–1059 |
| Islamic calendar | 1090–1091 |
| Japanese calendar | Enpō 8 (延宝８年) |
| Javanese calendar | 1602–1603 |
| Julian calendar | Gregorian minus 10 days |
| Korean calendar | 4013 |
| Minguo calendar | 232 before ROC 民前232年 |
| Nanakshahi calendar | 212 |
| Thai solar calendar | 2222–2223 |
| Tibetan calendar | 阴土羊年 (female Earth-Goat) 1806 or 1425 or 653 — to — 阳金猴年 (male Iron-Monkey) 1807 or 1426 or 654 |
1680 (MDCLXXX) was a leap year starting on Monday of the Gregorian calendar and a leap year starting on Thursday of the Julian calendar, the 1680th year of the Common Era (CE) and Anno Domini (AD) designations, the 680th year of the 2nd millennium, the 80th year of the 17th century, and the 1st year of the 1680s decade. As of the start of 1680, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.