ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

Time Zones Explained

Updated on April 10, 2011

Why Are There Time Zones?

Though the Sun appears to rotate around us each day, we are in fact rotating about our own planet's axis, and we spin in and out of the Sun's light every twenty-four hours. Because we can't all have sunlight at the same time, our days are staggered, so when it's morning in one country it's evening in another.

Time zones are a tricky concept to grasp, but once you get your head around how they work, you'll always know what time it is, wherever you are. It's easier than going away and trying to memorize how many hours ahead or behind they are back home.

The planet is divided into 360°, or imaginary lines which run vertically from pole to pole. These lines are called Meridians. The Prime Meridian, at 0°, passes through Greenwich, England. Time zones are determined by how many degrees east or west of the Prime Meridian one is, up to 180°, which is on the opposite side of the planet, and the location of the International Date Line. This is where time changes a whole day.

How to Use Them

To figure out what time zone you are in, you'll either need a good memory or a world map. If you're using a map, you can look at the lines of longitude to determine the different zones. The world is divided into twenty-four different time zones; twelve east and twelve west of the Prime Meridian. Each zone is 15° of longitude wide.

Once you are looking at the Prime Meridian on your world map, count the number of 15° sections until you reach your location.Then take the time at the Prime Meridian and add if you are west of it (eg. Canada) or subtract if you're east (eg. Russia). The number of time zones is equal to the number of hours to add or subtract to the co-ordinated universal time (UTC), at the Prime Meridian.

For example, if you are in Toronto, Ontario you are six time zones west of the Prime Meridian; or six hours less than UTC. If it is 12:00 noon in Greenwich, England, then it is 6:00 am in Toronto. This is standard time, not daylight savings.

If you're not using a map, you can memorize the different time zones and apply it to wherever you are.

Sources: Navigation Training for Aviation; From The Ground Up.



Comments

    0 of 8192 characters used
    Post Comment

    • profile image

      Lazalia Fiena 

      7 years ago

      great site

    • Katelyn Weel profile imageAUTHOR

      Katelyn Weel 

      7 years ago from Ontario, Canada

      Thanks, Marc..fixed it!

    • profile image

      Marc  

      8 years ago

      good :) thanks :)

      .. btw you spelt greenwich wrong! it's not greenwhich!

    • Nastasia profile image

      Katrina of A VICTORIOUS WOMAN MINISTRY 

      8 years ago

      Thanks for reading and commenting on my Hub. Welcome aboard!

    working

    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, hubpages.com uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at: https://hubpages.com/privacy-policy#gdpr

    Show Details
    Necessary
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the googleapis.com or gstatic.com domains, for performance and efficiency reasons. (Privacy Policy)
    Features
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Marketing
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Statistics
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)