823

Millennium: 1st millennium
Centuries:
Decades:
Years:
823 in various calendars
Gregorian calendar823
DCCCXXIII
Ab urbe condita1576
Armenian calendar272
ԹՎ ՄՀԲ
Assyrian calendar5573
Balinese saka calendar744–745
Bengali calendar230
Berber calendar1773
Buddhist calendar1367
Burmese calendar185
Byzantine calendar6331–6332
Chinese calendar壬寅年 (Water Tiger)
3520 or 3313
    — to —
癸卯年 (Water Rabbit)
3521 or 3314
Coptic calendar539–540
Discordian calendar1989
Ethiopian calendar815–816
Hebrew calendar4583–4584
Hindu calendars
 - Vikram Samvat879–880
 - Shaka Samvat744–745
 - Kali Yuga3923–3924
Holocene calendar10823
Iranian calendar201–202
Islamic calendar207–208
Japanese calendarKōnin 14
(弘仁14年)
Javanese calendar719–720
Julian calendar823
DCCCXXIII
Korean calendar3156
Minguo calendar1089 before ROC
民前1089年
Nanakshahi calendar−645
Seleucid era1134/1135 AG
Thai solar calendar1365–1366
Tibetan calendar阳水虎年
(male Water-Tiger)
949 or 568 or −204
    — to —
阴水兔年
(female Water-Rabbit)
950 or 569 or −203
Thomas the Slav surrenders to Michael II

Year 823 (DCCCXXIII) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar.