| Centuries: | 3rd century · 4th century · 5th century |
| Decades: | 330s 340s 350s 360s 370s 380s 390s |
| Years: | 363 364 365 366 367 368 369 |
| 366 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 366 CCCLXVI |
| Ab urbe condita | 1119 |
| Armenian calendar | N/A |
| Bahá'í calendar | -1478 – -1477 |
| Bengali calendar | -227 |
| Berber calendar | 1316 |
| Buddhist calendar | 910 |
| Burmese calendar | -272 |
| Byzantine calendar | 5874 – 5875 |
| Chinese calendar | 乙丑年十二月初四日 (3002/3062-12-4) — to —
丙寅年十一月十三日(3003/3063-11-13) |
| Coptic calendar | 82 – 83 |
| Ethiopian calendar | 358 – 359 |
| Hebrew calendar | 4126 – 4127 |
| Hindu calendars | |
| - Bikram Samwat | 422 – 423 |
| - Shaka Samvat | 288 – 289 |
| - Kali Yuga | 3467 – 3468 |
| Holocene calendar | 10366 |
| Iranian calendar | 256 BP – 255 BP |
| Islamic calendar | 264 BH – 263 BH |
| Japanese calendar | |
| Korean calendar | 2699 |
| Thai solar calendar | 909 |