accurate map showing the nation’s time zones and local observance of Daylight Saving Time. Federal transportation officials are now at work creating an accurate map of the nation’s time zones ...

Image caption, Maps of the world showing different time ... This is why the world is divided into 24 different time zones. One for each hour in a day. Image caption, It is night-time where Sue ...

accurate map showing the nation's time zones and local observance of Daylight Saving Time.Related video above: Here's How Daylight Saving Time Affects Your HealthFederal transportation officials ...