3rd millennium

Millennia:	2nd millennium · 3rd millennium · 4th millennium
Centuries:	21st century · 22nd century · 23rd century · 24th century · 25th century · 26th century · 27th century · 28th century · 29th century · 30th century

The 3rd millennium started on January 1, 2001 and will end on December 31, 3000.

Events

• By 2070, 1 to 3 billion people could be living in extreme heat because of climate change.
• 2285: On March 22, Easter will occur on its earliest possible date for the first time since the year 1818.
• 2400: The first century leap year since 2000.
• 2800: The first century leap year since 2400.