| Millennium: | 2nd millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 1827 by topic |
|---|
| Humanities |
| By country |
| Other topics |
| Lists of leaders |
| Birth and death categories |
| Establishments and disestablishments categories |
| Works category |
| Gregorian calendar | 1827 MDCCCXXVII |
| Ab urbe condita | 2580 |
| Armenian calendar | 1276 ԹՎ ՌՄՀԶ |
| Assyrian calendar | 6577 |
| Balinese saka calendar | 1748–1749 |
| Bengali calendar | 1234 |
| Berber calendar | 2777 |
| British Regnal year | 7 Geo. 4 – 8 Geo. 4 |
| Buddhist calendar | 2371 |
| Burmese calendar | 1189 |
| Byzantine calendar | 7335–7336 |
| Chinese calendar | 丙戌年 (Fire Dog) 4524 or 4317 — to — 丁亥年 (Fire Pig) 4525 or 4318 |
| Coptic calendar | 1543–1544 |
| Discordian calendar | 2993 |
| Ethiopian calendar | 1819–1820 |
| Hebrew calendar | 5587–5588 |
| Hindu calendars | |
| - Vikram Samvat | 1883–1884 |
| - Shaka Samvat | 1748–1749 |
| - Kali Yuga | 4927–4928 |
| Holocene calendar | 11827 |
| Igbo calendar | 827–828 |
| Iranian calendar | 1205–1206 |
| Islamic calendar | 1242–1243 |
| Japanese calendar | Bunsei 10 (文政１０年) |
| Javanese calendar | 1754–1755 |
| Julian calendar | Gregorian minus 12 days |
| Korean calendar | 4160 |
| Minguo calendar | 85 before ROC 民前85年 |
| Nanakshahi calendar | 359 |
| Thai solar calendar | 2369–2370 |
| Tibetan calendar | 阳火狗年 (male Fire-Dog) 1953 or 1572 or 800 — to — 阴火猪年 (female Fire-Pig) 1954 or 1573 or 801 |
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1827 (MDCCCXXVII) was a common year starting on Monday of the Gregorian calendar and a common year starting on Saturday of the Julian calendar, the 1827th year of the Common Era (CE) and Anno Domini (AD) designations, the 827th year of the 2nd millennium, the 27th year of the 19th century, and the 8th year of the 1820s decade. As of the start of 1827, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.