| Millennium: | 2nd millennium |
|---|---|
| Centuries: | 10th century – 11th century – 12th century |
| Decades: | 990s 1000s 1010s – 1020s – 1030s 1040s 1050s |
| Years: | 1024 1025 1026 – 1027 – 1028 1029 1030 |
| 1027 by topic | |
| Lists of leaders | |
| State leaders | |
| Birth and death categories | |
| Births – Deaths | |
| Establishments and disestablishments categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 1027 MXXVII |
| Ab urbe condita | 1780 |
| Armenian calendar | 476 ԹՎ ՆՀԶ |
| Bahá'í calendar | -817 – -816 |
| Bengali calendar | 434 |
| Berber calendar | 1977 |
| Buddhist calendar | 1571 |
| Burmese calendar | 389 |
| Byzantine calendar | 6535 – 6536 |
| Chinese calendar | 丙寅年十一月廿一日 (3663/3723-11-21) — to —
丁卯年十二月初一日(3664/3724-12-1) |
| Coptic calendar | 743 – 744 |
| Ethiopian calendar | 1019 – 1020 |
| Hebrew calendar | 4787 – 4788 |
| Hindu calendars | |
| - Bikram Samwat | 1083 – 1084 |
| - Shaka Samvat | 949 – 950 |
| - Kali Yuga | 4128 – 4129 |
| Holocene calendar | 11027 |
| Iranian calendar | 405 – 406 |
| Islamic calendar | 417 – 418 |
| Japanese calendar | |
| Korean calendar | 3360 |
| Thai solar calendar | 1570 |