Most Europeans will adjust their clocks on Oct. 29 to “fall back” an hour, and most Americans will do the same on Nov. 5. But Europe and the United States are more the exception than the rule. Most ...

"What time is it?" used to be a surprisingly tricky question to answer in North America. Before Nov. 18, 1883, every city and town kept its own local time, set by the position of the sun. That meant ...