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United States Time Zones
A standard time zone generally refers to any of the 24 regions of the earth’s surface (loosely divided by longitude) in which standard time is kept. However, the number of standard time zones is debatable and discussed among various sources, particularly with regard to the International Date Line... More »
United States Time Zones:

en.wikipedia.org/wiki/Time_in_the_United_States

Standard time zones in the United States are currently defined at the federal level by law 15 USC §260. The federal law ...

www.timetemperature.com/tzus/time_zone.shtml

The United States uses nine standard time zones. From east to west they are Atlantic Standard Time (AST), Eastern Standard Time (EST), Central Standard Time ...

www.timeanddate.com/time/zone/usa

Time zones in United States, including time zone names for standard time and Daylight Saving Time (DST) in 2017.

www.timeanddate.com/worldclock/usa

What time is it in United States now? Time zone map of USA and the local time and time zone names in each state.

www.worldtimezone.com/time-usa12.php

USA time zones map with current local time Daylight Saving Time and time for Total ... for Mexico / map for Caribbean / Central America / map for State of Indiana ...

nationalmap.gov/small_scale/mld/timeznp.html

Feb 8, 2017 ... The six standard time zones for the United States and a seventh zone which encompasses Puerto Rico and the U.S. Virgin Islands as of 2010.

24timezones.com/us_clock/usa_time.php

USA Time Clock & Map - check current local time in the USA - timezones, time difference, offet to GMT/UTC, summer/winter time conversion dates, actual official  ...

www.socialstudiesforkids.com/articles/time/timezones.htm

Why? It's called Time Zones. It's the law in the United States and in most countries in the world. It's the law because most countries want to have a standard ...

greenwichmeantime.com/time-zone/usa/time-zones

Daylight Saving Time begins for most of the United States at 2 a.m. on the second Sunday of March. Time reverts to standard time at 2 a.m. on the first Sunday of ...