668

Millennium: 1st millennium
Centuries:
Decades:
Years:
668 in various calendars
Gregorian calendar668
DCLXVIII
Ab urbe condita1421
Armenian calendar117
ԹՎ ՃԺԷ
Assyrian calendar5418
Balinese saka calendar589–590
Bengali calendar75
Berber calendar1618
Buddhist calendar1212
Burmese calendar30
Byzantine calendar6176–6177
Chinese calendar丁卯年 (Fire Rabbit)
3365 or 3158
    — to —
戊辰年 (Earth Dragon)
3366 or 3159
Coptic calendar384–385
Discordian calendar1834
Ethiopian calendar660–661
Hebrew calendar4428–4429
Hindu calendars
 - Vikram Samvat724–725
 - Shaka Samvat589–590
 - Kali Yuga3768–3769
Holocene calendar10668
Iranian calendar46–47
Islamic calendar47–48
Japanese calendarHakuchi 19
(白雉19年)
Javanese calendar559–560
Julian calendar668
DCLXVIII
Korean calendar3001
Minguo calendar1244 before ROC
民前1244年
Nanakshahi calendar−800
Seleucid era979/980 AG
Thai solar calendar1210–1211
Tibetan calendar阴火兔年
(female Fire-Rabbit)
794 or 413 or −359
    — to —
阳土龙年
(male Earth-Dragon)
795 or 414 or −358
Mosaic panel of Constantine IV (Ravenna)

Year 668 (DCLXVIII) was a leap year starting on Saturday (link will display the full calendar) of the Julian calendar. The denomination 668 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.