"What time is it?" used to be a surprisingly tricky question to answer in North America. Before Nov. 18, 1883, every city and ...

Charles F. Dowd tamed time. The career educator conceived a plan so audacious it’s hard to believe there was an era when his vision for the world didn’t exist. Dowd created time zones. He put the ...

Time zones can get surprisingly complicated—some countries stretch across just one, while others juggle several at once. From sprawling continents to tiny islands scattered across oceans, a few ...