The following activity sheets give your students practice in converting time between different time zones.

Many people wonder we have time zones. If there were not any time zones, midnight would be morning in some places and afternoon in others. Time zones allow the global community to have a similar human experience. There are twenty-four different time zones because it takes twenty-four hours for our planet to rotate. With this in mind, everyone that experiences noon has a similar experience as far as the amount and the intensity of the sun. This section of our website helps students get comfortable with working with time values across time zones.

Toward the end of the nineteenth century Coordinated Universal Time (UTC) was created to provide a standard for all time zones to work off of. This was decided upon at the Washington Meridian Conference. Before that Greenwich Mean Time (GMT) was the standard that was observed by most people. This time is observed and recorded at the Royal Observatory in Greenwich, London. UTC is often mistaken for an actual times zone, which it is not. The world basically sets in clock to this standard. These worksheets explain how to convert times to a given location's local time using Coordinated Universal Time (UTC) classifications. Students will also calculate the age of the presented data.

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Time Conversion Worksheets

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Time Conversion Chart Lesson

Students are walked through determining when the data was taken and the age of the data. According to given table Wichita, KA follows CDT zone. 1. Convert the recorded value to local time. 11 JUL 07 = July 11, 2007, UTC – 5 hours = CDT, 16:00 UTC – 5 hours = 11:00 CDT, 11:00 UTC = 11:00 am CDT, so... The data was recorded: 11:00 am July 11, 2007. 2. Calculate the age of the data. Current - Recorded = Age of Data 6:00 pm July 11, 2007 - 11:00 am July 11, 2007 = 0 days, 7 hours, 0 minutes. Age of Data: 0 days, 7 hours, 0 minutes

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Lesson and Practice

Students will convert times to a given location's local value using (UTC) classifications. A sample problem is solved and two practice problems are provided.


You will practice this skill across a wide variety of scenarios. Ten problems are provided.


Students will practice converting times and performing operations between them. Ten problems are provided.

Chart Drill

Students will work off a chart to figure out how the times coincide. Eight problems are provided.


Determine when the data was taken and the age of the data. For example: Data Stamp: 10 JAN 07 10:00 UTC, Current : January 12, 2007 11:30 am, Location: Wichita, KA.

Using Time Conversion Charts Lesson

You use the current value that you are solving the problem as the time difference.


One thing is true, time never waits. Solve more time conversion problems.


Why would you not want more work on this.


Just remember the general concept of that in around to figure out how old something is you take the current time and subtract it by the time that it was created or born.

Skills Check

The concept of how to convert these values when you are given a location's local time using (UTC) classifications. Six practice problems are provided.


Students will demonstrate their proficiency with this skill. Ten problems are provided.


This serves as a good way to introduce everything for you. Three problems are provided, and space is included for students to copy the correct answer when given.