| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 680 by topic |
|---|
| Leaders |
| Categories |
| Gregorian calendar | 680 DCLXXX |
| Ab urbe condita | 1433 |
| Armenian calendar | 129 ԹՎ ՃԻԹ |
| Assyrian calendar | 5430 |
| Balinese saka calendar | 601–602 |
| Bengali calendar | 87 |
| Berber calendar | 1630 |
| Buddhist calendar | 1224 |
| Burmese calendar | 42 |
| Byzantine calendar | 6188–6189 |
| Chinese calendar | 己卯年 (Earth Rabbit) 3377 or 3170 — to — 庚辰年 (Metal Dragon) 3378 or 3171 |
| 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 | Hakuchi 31 (白雉３１年) |
| 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 |
| Tibetan calendar | 阴土兔年 (female Earth-Rabbit) 806 or 425 or −347 — to — 阳金龙年 (male Iron-Dragon) 807 or 426 or −346 |
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.