366

Millennium: 1st millennium
Centuries:
Decades:
Years:
366 in various calendars
Gregorian calendar366
CCCLXVI
Ab urbe condita1119
Assyrian calendar5116
Balinese saka calendar287–288
Bengali calendar−227
Berber calendar1316
Buddhist calendar910
Burmese calendar−272
Byzantine calendar5874–5875
Chinese calendar乙丑年 (Wood Ox)
3063 or 2856
    — to —
丙寅年 (Fire Tiger)
3064 or 2857
Coptic calendar82–83
Discordian calendar1532
Ethiopian calendar358–359
Hebrew calendar4126–4127
Hindu calendars
 - Vikram Samvat422–423
 - Shaka Samvat287–288
 - Kali Yuga3466–3467
Holocene calendar10366
Iranian calendar256 BP – 255 BP
Islamic calendar264 BH – 263 BH
Javanese calendar248–249
Julian calendar366
CCCLXVI
Korean calendar2699
Minguo calendar1546 before ROC
民前1546年
Nanakshahi calendar−1102
Seleucid era677/678 AG
Thai solar calendar908–909
Tibetan calendar阴木牛年
(female Wood-Ox)
492 or 111 or −661
    — to —
阳火虎年
(male Fire-Tiger)
493 or 112 or −660
Mogao Caves (China)

Year 366 (CCCLXVI) was a common year starting on Sunday of the Julian calendar. At the time, it was known as the Year of the Consulship of Gratianus and Dagalaifus (or, less frequently, year 1119 Ab urbe condita). The denomination 366 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.