| Millennium: | 2nd millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 1863 by topic |
|---|
| Humanities |
| By country |
| Other topics |
| Lists of leaders |
| Birth and death categories |
| Establishments and disestablishments categories |
| Works category |
| Gregorian calendar | 1863 MDCCCLXIII |
| Ab urbe condita | 2616 |
| Armenian calendar | 1312 ԹՎ ՌՅԺԲ |
| Assyrian calendar | 6613 |
| Baháʼí calendar | 19–20 |
| Balinese saka calendar | 1784–1785 |
| Bengali calendar | 1270 |
| Berber calendar | 2813 |
| British Regnal year | 26 Vict. 1 – 27 Vict. 1 |
| Buddhist calendar | 2407 |
| Burmese calendar | 1225 |
| Byzantine calendar | 7371–7372 |
| Chinese calendar | 壬戌年 (Water Dog) 4560 or 4353 — to — 癸亥年 (Water Pig) 4561 or 4354 |
| Coptic calendar | 1579–1580 |
| Discordian calendar | 3029 |
| Ethiopian calendar | 1855–1856 |
| Hebrew calendar | 5623–5624 |
| Hindu calendars | |
| - Vikram Samvat | 1919–1920 |
| - Shaka Samvat | 1784–1785 |
| - Kali Yuga | 4963–4964 |
| Holocene calendar | 11863 |
| Igbo calendar | 863–864 |
| Iranian calendar | 1241–1242 |
| Islamic calendar | 1279–1280 |
| Japanese calendar | Bunkyū 3 (文久３年) |
| Javanese calendar | 1791–1792 |
| Julian calendar | Gregorian minus 12 days |
| Korean calendar | 4196 |
| Minguo calendar | 49 before ROC 民前49年 |
| Nanakshahi calendar | 395 |
| Thai solar calendar | 2405–2406 |
| Tibetan calendar | 阳水狗年 (male Water-Dog) 1989 or 1608 or 836 — to — 阴水猪年 (female Water-Pig) 1990 or 1609 or 837 |
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1863 (MDCCCLXIII) was a common year starting on Thursday of the Gregorian calendar and a common year starting on Tuesday of the Julian calendar, the 1863rd year of the Common Era (CE) and Anno Domini (AD) designations, the 863rd year of the 2nd millennium, the 63rd year of the 19th century, and the 4th year of the 1860s decade. As of the start of 1863, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.