| Millennium: | 2nd millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 1020 by topic |
|---|
| Leaders |
|
| Birth and death categories |
| Births – Deaths |
| Establishments and disestablishments categories |
| Establishments – Disestablishments |
| Gregorian calendar | 1020 MXX |
| Ab urbe condita | 1773 |
| Armenian calendar | 469 ԹՎ ՆԿԹ |
| Assyrian calendar | 5770 |
| Balinese saka calendar | 941–942 |
| Bengali calendar | 427 |
| Berber calendar | 1970 |
| English Regnal year | N/A |
| Buddhist calendar | 1564 |
| Burmese calendar | 382 |
| Byzantine calendar | 6528–6529 |
| Chinese calendar | 己未年 (Earth Goat) 3717 or 3510 — to — 庚申年 (Metal Monkey) 3718 or 3511 |
| Coptic calendar | 736–737 |
| Discordian calendar | 2186 |
| Ethiopian calendar | 1012–1013 |
| Hebrew calendar | 4780–4781 |
| Hindu calendars | |
| - Vikram Samvat | 1076–1077 |
| - Shaka Samvat | 941–942 |
| - Kali Yuga | 4120–4121 |
| Holocene calendar | 11020 |
| Igbo calendar | 20–21 |
| Iranian calendar | 398–399 |
| Islamic calendar | 410–411 |
| Japanese calendar | Kannin 4 (寛仁４年) |
| Javanese calendar | 922–923 |
| Julian calendar | 1020 MXX |
| Korean calendar | 3353 |
| Minguo calendar | 892 before ROC 民前892年 |
| Nanakshahi calendar | −448 |
| Seleucid era | 1331/1332 AG |
| Thai solar calendar | 1562–1563 |
| Tibetan calendar | 阴土羊年 (female Earth-Goat) 1146 or 765 or −7 — to — 阳金猴年 (male Iron-Monkey) 1147 or 766 or −6 |
Year 1020 (MXX) was a leap year starting on Friday (link will display the full calendar) of the Julian calendar.