| Millennium: | 1st millennium |
|---|---|
| Centuries: | 6th century – 7th century – 8th century |
| Decades: | 640s 650s 660s – 670s – 680s 690s 700s |
| Years: | 674 675 676 – 677 – 678 679 680 |
| 677 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 677 DCLXXVII |
| Ab urbe condita | 1430 |
| Armenian calendar | 126 ԹՎ ՃԻԶ |
| Bahá'í calendar | -1167 – -1166 |
| Bengali calendar | 84 |
| Berber calendar | 1627 |
| Buddhist calendar | 1221 |
| Burmese calendar | 39 |
| Byzantine calendar | 6185 – 6186 |
| Chinese calendar | 丙子年十一月廿二日 (3313/3373-11-22) — to —
丁丑年十二月初二日(3314/3374-12-2) |
| Coptic calendar | 393 – 394 |
| Ethiopian calendar | 669 – 670 |
| Hebrew calendar | 4437 – 4438 |
| Hindu calendars | |
| - Bikram Samwat | 733 – 734 |
| - Shaka Samvat | 599 – 600 |
| - Kali Yuga | 3778 – 3779 |
| Holocene calendar | 10677 |
| Iranian calendar | 55 – 56 |
| Islamic calendar | 57 – 58 |
| Japanese calendar | |
| Korean calendar | 3010 |
| Thai solar calendar | 1220 |
677 was a year of 7th century.