- UTC = Coordinated Universal Time, or Zulu PST = Pacific Standard Time (UTC - 8 hours) ALDT = Alaskan Daylight Time (UTC - 8 hours) PDT = Pacific Daylight Time (UTC - 7 hours) MST = Mountain Standard Time (UTC - 7 hours) MDT = Mountain Daylight Time (UTC - 6 hours) CST = Central Standard Time (UTC - 6 hours) CDT = Central Daylight Time (UTC - 5.
- Central Standard Time is 6:00 hours behind Coordinated Universal Time You’re comparing Coordinated Universal Time (UTC) and Central Standard Time (CST)! Most locations are observing Central Daylight Time (CDT). Maybe you should check the difference between Coordinated Universal Time (UTC) and Central Time (CDT) instead.
Since radio signals can cross multiple time zones and the international date line, some worldwide standard for time and date is needed. This standard is coordinated universal time, abbreviated UTC. This was formerly known as Greenwich mean time (GMT). Other terms used to refer to it include 'Zulu time' (after the 'Z' often used after UTC times. The Zulu term stems from military usage while Coordinated Universal Time is the civilian term for this 24-hour clock. The origin of these time zones began in the mid 1800's in England. In 1852 the Royal Observatory in Greenwich, England began transmitting time telegraphically and just three years later became the standard time in most of Great. Converting between time data types is dependent on whether the time is in UTC or local time. Coordinated Universal Time (UTC) The epoch uses UTC for its definition rather than a time zone. Therefore, the seconds elapsed since the epoch is not variable depending on your geographical location. However, the same cannot be said of structtime.
Universal Coordinated Time Conversion Chart
Weather data is reported in Coordinated Universal Time (UTC) and thissystem is based upon a 24-hour clock of time measured along the Prime Meridian (0 degrees longitude) in Greenwich, England.Since most people are more familiar with the AM/PM time system, it is important to be able to convert from UTC to AM/PM when determining the localtime for which a weather map is valid. The purpose of this activity is to introduce Coordinated Universal Time,and how to convert between local time and UTC. Key wordsthroughout this activity link directly to helper resources that provideuseful information for answering the questions.
Converting From UTC to Local Date and Time:
The Coordinated Universal Time (UTC) for each image is typically givenin the upper right hand corner, as was the case for the map of surface observations given above.Use the time on this weather image to convert from UTC to local AM/PM data and time for each of the following cities.For example, the time of this example image is 2000Z 28 October 1996 in UTCand converting that toCentral Standard Time (CST)yields October 28, 1996, 2:00 PM (CST). The cities below are located indifferent time zones, and this will affect the result of the conversion.
1) Convert from 2000Z 28 October 1996 UTC to Central Standard Time (CST) for Chicago, Illinois.
More Difficult Conversions:
As was done for the previous section, convert the UTC time on the map above to localtimes for the following cities.
|5) Convert from 0500Z 29 October 1996 UTC to Central Daylights Savings Time (CDT) for Chicago, Illinois.|
Reporting Current Local Time:
9) Now apply your UTC conversion skills to current weather images.Go to the Weather Visualizer(CoVis version public version)and create the latest map of surface observations.From this image, convert the UTC time (on the image)to your local AM/PM time and be sure to show your calculations.
If the Weather Visualizer is too busy, here are additional websites for accessing current weather data.
Coordinated Universal Time To Cst