At first glance, it might seem obvious that Russia or the United States would dominate the number of time zones in the world, given their sheer size. But the rankings of the countries with the most time zones in the world tell a more complex story, one shaped not just by continental spread, but by colonial history and the geographic sprawl of overseas territories. It counts all official standard time zones used by a country, including those observed in overseas or outlying territories. The tally reflects permanent standard time zones currently used by countries and their territories, expressed as UTC (Coordinated Universal Time) offsets. 10 countries with the most time zones