Which country has the most time zones?

Metropolitan France itself sits in a single time zone, but French overseas territories and departments — including French Polynesia, New Caledonia, Réunion, Guadeloupe, Martinique, French Guiana, and several smaller island territories — span the planet from the Pacific to the Caribbean to the Indian Ocean.

Countries with the most time zones

1. France — 12 time zones
2. United States — 11 time zones (including territories)
3. Russia — 11 time zones
4. United Kingdom — 9 time zones (including overseas territories)

This is different from asking which country spans the most time zones geographically in one continuous landmass — that distinction goes to Russia, which stretches across 11 contiguous zones from Kaliningrad to Chukotka.