66 is a common year in the 1st century.

Millennium: 1st millennium
Centuries: 1st century BC1st century2nd century
Decades: 30s  40s  50s  – 60s –  70s  80s  90s
Years: 63 64 656667 68 69
AD 66 in other calendars
Gregorian calendarAD 66
LXVI
Ab urbe condita819
Assyrian calendar4816
Balinese saka calendarN/A
Bengali calendar−527
Berber calendar1016
Buddhist calendar610
Burmese calendar−572
Byzantine calendar5574–5575
Chinese calendar乙丑(Wood Ox)
2762 or 2702
    — to —
丙寅年 (Fire Tiger)
2763 or 2703
Coptic calendar−218 – −217
Discordian calendar1232
Ethiopian calendar58–59
Hebrew calendar3826–3827
Hindu calendars
 - Vikram Samvat122–123
 - Shaka SamvatN/A
 - Kali Yuga3166–3167
Holocene calendar10066
Iranian calendar556 BP – 555 BP
Islamic calendar573 BH – 572 BH
Javanese calendarN/A
Julian calendarAD 66
LXVI
Korean calendar2399
Minguo calendar1846 before ROC
民前1846年
Nanakshahi calendar−1402
Seleucid era377/378 AG
Thai solar calendar608–609
Tibetan calendar阴木牛年
(female Wood-Ox)
192 or −189 or −961
    — to —
阳火虎年
(male Fire-Tiger)
193 or −188 or −960

Events change