January 1, 2008 is Tuesday. What day of the week lies on Jan 1, 2009?

Given

• Jan 1, 2008 = Tuesday.
• Find the day on Jan 1, 2009.

Reasoning

• 2008 is a leap year ⇒ moving to the next Jan 1 shifts the weekday by +2.

Computation
Tuesday + 2 = Thursday.

Final Answer
Jan 1, 2009 was Thursday.