Back 643 Abkhazian 643 Afrikaans 643 ALS 643 እ.ኤ.አ. Amharic 643 AN 643 Arabic 643 AST 643 Azerbaijani ۶۴۳ (میلادی) AZB 643 Byelorussian
| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 643 by topic |
|---|
| Leaders |
| Categories |
| Gregorian calendar | 643 DCXLIII |
| Ab urbe condita | 1396 |
| Armenian calendar | 92 ԹՎ ՂԲ |
| Assyrian calendar | 5393 |
| Balinese saka calendar | 564–565 |
| Bengali calendar | 50 |
| Berber calendar | 1593 |
| Buddhist calendar | 1187 |
| Burmese calendar | 5 |
| Byzantine calendar | 6151–6152 |
| Chinese calendar | 壬寅年 (Water Tiger) 3340 or 3133 — to — 癸卯年 (Water Rabbit) 3341 or 3134 |
| Coptic calendar | 359–360 |
| Discordian calendar | 1809 |
| Ethiopian calendar | 635–636 |
| Hebrew calendar | 4403–4404 |
| Hindu calendars | |
| - Vikram Samvat | 699–700 |
| - Shaka Samvat | 564–565 |
| - Kali Yuga | 3743–3744 |
| Holocene calendar | 10643 |
| Iranian calendar | 21–22 |
| Islamic calendar | 22–23 |
| Japanese calendar | N/A |
| Javanese calendar | 533–535 |
| Julian calendar | 643 DCXLIII |
| Korean calendar | 2976 |
| Minguo calendar | 1269 before ROC 民前1269年 |
| Nanakshahi calendar | −825 |
| Seleucid era | 954/955 AG |
| Thai solar calendar | 1185–1186 |
| Tibetan calendar | 阳水虎年 (male Water-Tiger) 769 or 388 or −384 — to — 阴水兔年 (female Water-Rabbit) 770 or 389 or −383 |
Year 643 (DCXLIII) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. The denomination 643 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.