know about the Time zones and weather divisions in the USA, 2021

Time Zones

A time zone is one among the 24 spherical lunes, which is a section on the globe in a north/south direction having equal width, each assigned with one of the 24 hours.

Every section observes a uniform standard time to keep track of the day and night cycle. It means that in each geographic region within a time zone, people use the same time.

All these zones are defined by the Coordinated Universal Time (UTC) by a number of hours centered on the prime meridian.

The U.S. Time Zones

The below map depicts the six time zones of the United States and the actual time in the different time zones.

It is given from West to East:

  1. Hawaii-Aleutian Time (HAT)

Hawaii-Aleutian Standard Time – HAST (UTC-10)

Hawaii-Aleutian Daylight Time – HADT (UTC-9)

  1. Alaska Time (AST)

Alaska Standard Time – AKST (UTC-9)

Alaska Daylight Time – AKDT (UTC-8)

  1. Pacific Time (PT)

Pacific Standard Time – PST (UTC-8)

Pacific Daylight Time – PDT (UTC-7)

  1. Mountain Time (MT)

Mountain Standard Time – MST (UTC-7)

Mountain Daylight Time – MDT (UTC-6)

  1. Central Time (CT)

Central Standard Time – CST (UTC-6)

Central Daylight Time – CDT (UTC-5)

  1. Eastern Time (ET)

Eastern Standard Time – EST (UTC-5)

Eastern Daylight Time – EDT (UTC-4)

Time Zone



GMT = 12.00 pm

Eastern Standard Time


Connecticut, Delaware Georgia, Maine, Maryland, Massachusetts, Michigan, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Vermont, Virginia, Washington DC, West Virginia

7:00 AM

Central Standard Time


Alabama, Arkansas, Illinois, Iowa, Louisiana, Michigan (Upper Peninsula), Minnesota, Mississippi, Missouri, Nebraska, Oklahoma, Wisconsin

6:00 AM

Mountain Standard Time


Arizona, Colorado, Montana, New Mexico, Utah, Wyoming

5:00 AM

Pacific Standard Time


California, Nevada, Washington

4:00 AM

Alaska Standard Time


Main part of Alaska (Anchorage, Juneau, Nome)

3:00 AM

Yukon Standard Time


Alaska-Hawaii Standard Time


Aleutian islands (west of Alaska), Hawaii

2:00 AM


While the below states lie in two time zones:

Time Zone


Eastern Standard Time and Central Standard Time

Florida, Indiana, Kentucky, Tennessee

Central Standard Time and Mountain Standard Time

Kansas, Nebraska, North Dakota, South Dakota, Texas

Mountain Standard Time and Pacific Standard Time

Idaho, Oregon


The U.S. Weather Divisions

In the U.S., there are 344 climate divisions and are based on the CONUS (Continental US). For every climatic division, monthly station temperature and precipitation values are computed from the daily observations.

The divisional values are weighted by area to compute state wide values, and the state-wide values are weighted by area to compute regional values.

The U.S. is typically grouped into five regions: The Northeast, the Southwest, the West, the Southeast, and the Midwest. USA climate varies dramatically by region.

The area could be split even further into three types of climate: coastal Mediterranean climates, Desert climates, and Mountainous alpine climates. In all three of these areas, summers are hot and dry.

There are 4 major climate zones:
  • Tropical zone from 0°–23.5° (between the tropics)
  • Subtropics from 23.5°–40°
  • Temperate zone from 40°–60°
  • Cold zone from 60°–90°
The six major climate regions are polar, temperate, arid, tropical, Mediterranean and tundra.
  • Polar Chill. Polar climates are very cold and dry throughout the year. …
  • Temperate Regions
  • Arid Zones
  • Damp Tropical Regions
  • The Mild Mediterranean
  • The Cold Tundra

Some people prefer to have all four seasons – fall, winter, spring and summer – and all of the weather that comes with each.

List of states in the U.S. with the best weather conditions:
  • California
  • Hawaii
  • Texas
  • Arizona
  • Florida
  • Georgia
  • South Carolina
  • Delaware
  • North Carolina
  • Louisiana
What is a time zone?

A time zone is an area wherein a common standard time is applicable, for economic, legal, and social reasons.

How many time zones are there in the US?

There are six time zones in the US main country. The 50 US states are spread across the six standard time zones. With dependencies (inhabited and uninhabited), however, the total count comes to 11 time zones.

What are the six time zones in the US states?

The six time zones within the 50 US states are – Alaska time, Central time, Eastern time, Hawaii-Aleutian time, Mountain time, and Pacific time.

Which US states have more than one time zone?

15 US states have more than one time zone. These are – Florida, Oregon, Kentucky, Arizona, Texas, Tennessee, North Dakota, Michigan, Alaska, South Dakota, Nevada, Kansas, Nebraska, Idaho, and Indiana.

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