The Vault is Slate’s history blog. Like us on Facebook, follow us on Twitter @slatevault, and find us on Tumblr. Find out more about what this space is all about here. Between the advent of railway ...

It is easy to check your local time, but the government says it may be harder to find a map with the correct times across the U.S. The inspector general for the U.S. Department of Transportation ...

A person may take knowing the local time for granted, but an official review revealed that there is no single, accurate map showing the nation’s time zones and local observance of Daylight Saving Time ...

What time is it in Alabama and does the state use one time zone or two? Here’s what you need to know before you check the ...