| 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 is a period of time that commenced on January 1, 2000, and will end on December 31, 2999 of the Gregorian calendar.
Centuries and decades[]
| 21st century | 2000s | 2010s | 2020s | 2030s | 2040s | 2050s | 2060s | 2070s | 2080s | 2090s |
| 22nd century | ||||||||||
| 23rd century | ||||||||||
| 24th century | ||||||||||
| 25th century | ||||||||||
| 26th century | ||||||||||
| 27th century | ||||||||||
| 28th century | ||||||||||
| 29th century | ||||||||||
| 30th century |
