780
| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| Gregorian calendar | 780 DCCLXXX |
| Ab urbe condita | 1533 |
| Armenian calendar | 229 ԹՎ ՄԻԹ |
| Assyrian calendar | 5530 |
| Bengali calendar | 187 |
| Berber calendar | 1730 |
| Buddhist calendar | 1324 |
| Burmese calendar | 142 |
| Byzantine calendar | 6288–6289 |
| Chinese calendar |
己未年 (Earth Goat) 3476 or 3416 — to — 庚申年 (Metal Monkey) 3477 or 3417 |
| Coptic calendar | 496–497 |
| Discordian calendar | 1946 |
| Ethiopian calendar | 772–773 |
| Hebrew calendar | 4540–4541 |
| Hindu calendars | |
| - Vikram Samvat | 836–837 |
| - Shaka Samvat | 701–702 |
| - Kali Yuga | 3880–3881 |
| Holocene calendar | 10780 |
| Iranian calendar | 158–159 |
| Islamic calendar | 163–164 |
| Japanese calendar |
Hōki 11 (宝亀１１年) |
| Javanese calendar | 675–676 |
| Julian calendar | 780 DCCLXXX |
| Korean calendar | 3113 |
| Minguo calendar | 1132 before ROC 民前1132年 |
| Nanakshahi calendar | −688 |
| Seleucid era | 1091/1092 AG |
| Thai solar calendar | 1322–1323 |
Year 780 (DCCLXXX) was a leap year starting on Saturday (link will display the full calendar) of the Julian calendar. The denomination 780 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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