| Millennium: | 1st millennium |
|---|---|
| Centuries: | 9th century – 10th century – 11th century |
| Decades: | 940s 950s 960s – 970s – 980s 990s 1000s |
| Years: | 974 975 976 – 977 – 978 979 980 |
| 977 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 977 CMLXXVII |
| Ab urbe condita | 1730 |
| Armenian calendar | 426 ԹՎ ՆԻԶ |
| Assyrian calendar | 5727 |
| Bahá'í calendar | -867–-866 |
| Bengali calendar | 384 |
| Berber calendar | 1927 |
| English Regnal year | N/A |
| Buddhist calendar | 1521 |
| Burmese calendar | 339 |
| Byzantine calendar | 6485–6486 |
| Chinese calendar | 丙子年十二月初九日 (3613/3673-12-9) — to —
丁丑年十一月十九日(3614/3674-11-19) |
| Coptic calendar | 693–694 |
| Ethiopian calendar | 969–970 |
| Hebrew calendar | 4737–4738 |
| Hindu calendars | |
| - Vikram Samvat | 1033–1034 |
| - Shaka Samvat | 899–900 |
| - Kali Yuga | 4078–4079 |
| Holocene calendar | 10977 |
| Iranian calendar | 355–356 |
| Islamic calendar | 366–367 |
| Japanese calendar | |
| Korean calendar | 3310 |
| Minguo calendar | 935 before ROC 民前935年 |
| Thai solar calendar | 1520 |
Year 977 (CMLXXVII) was a common year starting on Monday (link will display the full calendar) of the Julian calendar.