904

Millennium: 1st millennium
Centuries:
Decades:
Years:
904 in various calendars
Gregorian calendar904
CMIV
Ab urbe condita1657
Armenian calendar353
ԹՎ ՅԾԳ
Assyrian calendar5654
Balinese saka calendar825–826
Bengali calendar311
Berber calendar1854
Buddhist calendar1448
Burmese calendar266
Byzantine calendar6412–6413
Chinese calendar癸亥年 (Water Pig)
3601 or 3394
    — to —
甲子年 (Wood Rat)
3602 or 3395
Coptic calendar620–621
Discordian calendar2070
Ethiopian calendar896–897
Hebrew calendar4664–4665
Hindu calendars
 - Vikram Samvat960–961
 - Shaka Samvat825–826
 - Kali Yuga4004–4005
Holocene calendar10904
Iranian calendar282–283
Islamic calendar291–292
Japanese calendarEngi 4
(延喜4年)
Javanese calendar803–804
Julian calendar904
CMIV
Korean calendar3237
Minguo calendar1008 before ROC
民前1008年
Nanakshahi calendar−564
Seleucid era1215/1216 AG
Thai solar calendar1446–1447
Tibetan calendar阴水猪年
(female Water-Pig)
1030 or 649 or −123
    — to —
阳木鼠年
(male Wood-Rat)
1031 or 650 or −122
Saracen raiders sack Thessalonica (904)

Year 904 (CMIV) was a leap year starting on Sunday (link will display the full calendar) of the Julian calendar.