AD 1864

Millennium:	2nd millennium
Centuries:	18th century 19th century 20th century
Decades:	1840s 1850s 1860s 1870s 1880s
Years:	1861 1862 1863 1864 1865 1866 1867

1864 in various calendars

Gregorian calendar	1864 MDCCCLXIV
Ab urbe condita	2617
Armenian calendar	1313 ԹՎ ՌՅԺԳ
Assyrian calendar	6614
Bahá'í calendar	20–21
Balinese saka calendar	1785–1786
Bengali calendar	1271
Berber calendar	2814
British Regnal year	27 Vict. 1 – 28 Vict. 1
Buddhist calendar	2408
Burmese calendar	1226
Byzantine calendar	7372–7373
Chinese calendar	癸亥年 (Water Pig) 4560 or 4500     — to — 甲子年 (Wood Rat) 4561 or 4501
Coptic calendar	1580–1581
Discordian calendar	3030
Ethiopian calendar	1856–1857
Hebrew calendar	5624–5625
Hindu calendars
- Vikram Samvat	1920–1921
- Shaka Samvat	1785–1786
- Kali Yuga	4964–4965
Holocene calendar	11864
Igbo calendar	864–865
Iranian calendar	1242–1243
Islamic calendar	1280–1281
Japanese calendar	Bunkyū 4 / Genji 1 (元治元年)
Javanese calendar	1792–1793
Julian calendar	Gregorian minus 12 days
Korean calendar	4197
Minguo calendar	48 before ROC 民前48年
Nanakshahi calendar	396
Thai solar calendar	2406–2407
Tibetan calendar	阴水猪年 (female Water-Pig) 1990 or 1609 or 837     — to — 阳木鼠年 (male Wood-Rat) 1991 or 1610 or 838
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1864 was a leap year starting on Friday of the Gregorian calendar and a leap year starting on Wednesday of the Julian calendar, the 1864th year of the Common Era (CE) and Anno Domini (AD) designations, the 864th year of the 2nd millennium, the 64th year of the 19th century, and the 5th year of the 1860s decade. As of the start of 1864, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.

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