397

397 (CCCXCVII) was a common year starting on Thursday of the Julian calendar, the 397th year of the Common Era (CE) and Anno Domini (AD) designations, the 397th year of the 1st millennium, the 97th year of the 4th century, and the 8th year of the 390s decade. As of the start of 397, the Gregorian calendar was 1 day ahead of the Julian calendar, which was the dominant calendar of the time.

Millennium:	1st millennium
Centuries:	3rd century – 4th century – 5th century
Decades:	360s  370s  380s  – 390s –  400s  410s  420s
Years:	394 395 396 – 397 – 398 399 400

397 in other calendars

Gregorian calendar	397 CCCXCVII
Ab urbe condita	1150
Assyrian calendar	5147
Balinese saka calendar	318–319
Bengali calendar	−196
Berber calendar	1347
Buddhist calendar	941
Burmese calendar	−241
Byzantine calendar	5905–5906
Chinese calendar	丙申年 (Fire Monkey) 3093 or 3033     — to — 丁酉年 (Fire Rooster) 3094 or 3034
Coptic calendar	113–114
Discordian calendar	1563
Ethiopian calendar	389–390
Hebrew calendar	4157–4158
Hindu calendars
- Vikram Samvat	453–454
- Shaka Samvat	318–319
- Kali Yuga	3497–3498
Holocene calendar	10397
Iranian calendar	225 BP – 224 BP
Islamic calendar	232 BH – 231 BH
Javanese calendar	280–281
Julian calendar	397 CCCXCVII
Korean calendar	2730
Minguo calendar	1515 before ROC 民前1515年
Nanakshahi calendar	−1071
Seleucid era	708/709 AG
Thai solar calendar	939–940
Tibetan calendar	阳火猴年 (male Fire-Monkey) 523 or 142 or −630     — to — 阴火鸡年 (female Fire-Rooster) 524 or 143 or −629

Events

• John Chrysostom becomes the patriarch of Constantinople

Deaths

• April 4 – Saint Ambrose, one of the Church Fathers and bishop of Milan
• November 11 – Saint Martin of Tours, an "apostle of Gaul" and bishop of Tours