623

623 in other calendars
Gregorian calendar	623; DCXXIII
Ab urbe condita	1376
Armenian calendar	72; ԹՎ ՀԲ
Assyrian calendar	5373
Balinese saka calendar	544–545
Bengali calendar	30
Berber calendar	1573
Buddhist calendar	1167
Burmese calendar	−15
Byzantine calendar	6131–6132
Chinese calendar	壬午年 (Water Horse); 3319 or 3259; — to —; 癸未年 (Water Goat); 3320 or 3260
Coptic calendar	339–340
Discordian calendar	1789
Ethiopian calendar	615–616
Hebrew calendar	4383–4384
Hindu calendars
- Vikram Samvat	679–680
- Shaka Samvat	544–545
- Kali Yuga	3723–3724
Holocene calendar	10623
Iranian calendar	1–2
Islamic calendar	1–2
Japanese calendar	N/A
Javanese calendar	513–514
Julian calendar	623; DCXXIII
Korean calendar	2956
Minguo calendar	1289 before ROC; 民前1289年
Nanakshahi calendar	−845
Seleucid era	934/935 AG
Thai solar calendar	1165–1166
Tibetan calendar	ཆུ་ཕོ་རྟ་ལོ་; (male Water-Horse); 749 or 368 or −404; — to —; ཆུ་མོ་ལུག་ལོ་; (female Water-Sheep); 750 or 369 or −403

623 (DCXXIII) was a common year starting on Saturday of the Julian calendar, the 623rd year of the Common Era (CE) and Anno Domini (AD) designations, the 623rd year of the 1st millennium, the 23rd year of the 7th century, and the 4th year of the 620s decade. As of the start of 623, the Gregorian calendar was 3 days ahead of the Julian calendar, which was the dominant calendar of the time.

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