680
| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| Gregorian calendar | 680 DCLXXX |
| Ab urbe condita | 1433 |
| Armenian calendar | 129 ԹՎ ՃԻԹ |
| Assyrian calendar | 5430 |
| Bengali calendar | 87 |
| Berber calendar | 1630 |
| Buddhist calendar | 1224 |
| Burmese calendar | 42 |
| Byzantine calendar | 6188–6189 |
| Chinese calendar |
己卯年 (Earth Rabbit) 3376 or 3316 — to — 庚辰年 (Metal Dragon) 3377 or 3317 |
| Coptic calendar | 396–397 |
| Discordian calendar | 1846 |
| Ethiopian calendar | 672–673 |
| Hebrew calendar | 4440–4441 |
| Hindu calendars | |
| - Vikram Samvat | 736–737 |
| - Shaka Samvat | 601–602 |
| - Kali Yuga | 3780–3781 |
| Holocene calendar | 10680 |
| Iranian calendar | 58–59 |
| Islamic calendar | 60–61 |
| Japanese calendar | N/A |
| Javanese calendar | 572–573 |
| Julian calendar | 680 DCLXXX |
| Korean calendar | 3013 |
| Minguo calendar | 1232 before ROC 民前1232年 |
| Nanakshahi calendar | −788 |
| Seleucid era | 991/992 AG |
| Thai solar calendar | 1222–1223 |
Year 680 (DCLXXX) was a leap year starting on Sunday (link will display the full calendar) of the Julian calendar. The denomination 680 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.
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