2020 CE
- Common Era
- 2020 CE
- Gregorian Calendar
- 2020 AD
- Holocene Calendar
- 12020 HE
- Japanese Calendar
- Heisei 32 (平成32年)
- Japanese Imperial Year
- Kōki 2680 (皇紀2680年)
- Chinese Sexagenary Cycle
- Yang Metal Rat (庚子)
Milestones
- First human in space
- 59 years ago
- World War II ends
- 75 years ago
- Hindu-Arabic numerals introduced to Europe
- 818 years ago
- Mythical founding of Japan
- 2679 years ago
- Foundation of Rome
- 2772 years ago
- Beginning of Xia Dynasty in China
- 4120 years ago
- First Egyptian pyramid completed
- 4630 years ago
- End of the Paleolithic Period
- 12019 years ago