We are in the 21st century in the year 2023.
Explanation:
- The 1st century covers years 1 to 100.
- The 2nd century covers years 101 to 200.
- Following this pattern, the 21st century covers years 2001 to 2100.
Since 2023 falls between 2001 and 2100, it is part of the 21st century.
