2000 was a leap year that began on a Saturday. Which is the first later year with exactly the same calendar as 2000?

Explanation

1. 01

   The later year must be a leap year and must begin on a Saturday.

2. 02

   From 2000 to 2027 there are 28 years with 7 leap years (2000, 2004, …, 2024): odd days $= 28 + 7 = 35 = 5 \times 7$.

3. 03

   2028 is leap and begins on Saturday. No non-leap century year lies in between, so the 28-year rule holds.