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| Millennium: | 2nd millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 1647 by topic |
|---|
| Arts and science |
| Leaders |
| Birth and death categories |
| Births – Deaths |
| Establishments and disestablishments categories |
| Establishments – Disestablishments |
| Works category |
| Gregorian calendar | 1647 MDCXLVII |
| Ab urbe condita | 2400 |
| Armenian calendar | 1096 ԹՎ ՌՂԶ |
| Assyrian calendar | 6397 |
| Balinese saka calendar | 1568–1569 |
| Bengali calendar | 1054 |
| Berber calendar | 2597 |
| English Regnal year | 22 Cha. 1 – 23 Cha. 1 |
| Buddhist calendar | 2191 |
| Burmese calendar | 1009 |
| Byzantine calendar | 7155–7156 |
| Chinese calendar | 丙戌年 (Fire Dog) 4344 or 4137 — to — 丁亥年 (Fire Pig) 4345 or 4138 |
| Coptic calendar | 1363–1364 |
| Discordian calendar | 2813 |
| Ethiopian calendar | 1639–1640 |
| Hebrew calendar | 5407–5408 |
| Hindu calendars | |
| - Vikram Samvat | 1703–1704 |
| - Shaka Samvat | 1568–1569 |
| - Kali Yuga | 4747–4748 |
| Holocene calendar | 11647 |
| Igbo calendar | 647–648 |
| Iranian calendar | 1025–1026 |
| Islamic calendar | 1056–1057 |
| Japanese calendar | Shōhō 4 (正保４年) |
| Javanese calendar | 1568–1569 |
| Julian calendar | Gregorian minus 10 days |
| Korean calendar | 3980 |
| Minguo calendar | 265 before ROC 民前265年 |
| Nanakshahi calendar | 179 |
| Thai solar calendar | 2189–2190 |
| Tibetan calendar | 阳火狗年 (male Fire-Dog) 1773 or 1392 or 620 — to — 阴火猪年 (female Fire-Pig) 1774 or 1393 or 621 |
1647 (MDCXLVII) was a common year starting on Tuesday of the Gregorian calendar and a common year starting on Friday of the Julian calendar, the 1647th year of the Common Era (CE) and Anno Domini (AD) designations, the 647th year of the 2nd millennium, the 47th year of the 17th century, and the 8th year of the 1640s decade. As of the start of 1647, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.