topic badge

8.03 International time zones and time differences

Interactive practice questions

The Earth turns $360^\circ$360° in $24$24 hours.

a

How many degrees does it turn in $1$1 hour?

b

For every $75^\circ$75° of longitude, what is the time difference (in hours)?

c

For every $1^\circ$1° of longitude, what is the time difference (in minutes)?

Easy
2min

Greenwich Mean Time (GMT) is on the $0^\circ$0° meridian. What is the difference in time between the sunrise in Greenwich and the sunrise in a city at a longitude of:

Easy
2min

If location A has longitude $50^\circ$50° west of location B, which of the following is true?

Easy
< 1min

The time in Denver is GMT $-7$7.

Easy
1min
Sign up to access Practice Questions
Get full access to our content with a Mathspace account

Outcomes

ACMEM162

understand the link between longitude and time

ACMEM164

solve problems involving Greenwich Mean Time and the International Date Line

ACMEM165

find time differences between two places on Earth

ACMEM166

solve problems associated with time zones; for example, internet and phone usage

ACMEM167

solve problems relating to travelling east and west, incorporating time zone changes

What is Mathspace

About Mathspace