Decade and Century Lookup
What decade and century is a given year.
Decade
1990s
Also called the 90s.
Century
20th century
Millennium
2nd millennium
Year of decade
6th year
Trivia
World Wide Web takes off. Grunge era, dot-com boom, end of the Cold War.
By common usage, the 1990s starts at 1990 and ends at 1999, even though strict century math says the 20th century ran 1901-2000. This tool follows the common-usage convention for decades and the strict math for centuries.
About
1995 is the mid-90s, in the 20th century. 2005 is the mid-2000s, 21st century. The calculator names the decade, century, millennium, and shows trivia about that decade.
How to use
- Enter a year.
- See decade, century, millennium.
FAQ
Is 2000 the 20th or 21st century?+
Technically 20th. The 21st century started in 2001. But colloquially most people call 2000 onward the 21st century.