Calculation of local time and longitude - SS1 Geography Past Questions and Answers - page 2
Which time standard doesn't change with daylight saving time?
Local time
GMT
UTC
What does crossing the International Date Line from east to west result in?
Gaining a day
Losing a day
No change in the day
Which concept is used to define the time observed in a specific region?
Greenwich Mean Time
Coordinated Universal Time
Local time
What is the main purpose of GMT (Greenwich Mean Time)?
To mark the North Pole
To standardize local time worldwide
To set daylight saving time rules
Why do we have time zones on Earth?
To control time travel
To accommodate Earth's rotation
To simplify international trade
Explain the concept of the International Date Line and how it affects timekeeping.
The International Date Line (IDL) is an imaginary line that separates calendar days. When crossing from west to east, you lose a day, and when crossing from east to west, you gain a day
How is local time determined, and why is it different in various regions?
Local time is determined by adjusting the standard time of a specific time zone to match the region's geographical position. It varies because of Earth's rotation and longitude differences
Describe the relationship between GMT (Greenwich Mean Time) and Coordinated Universal Time (UTC).
GMT (Greenwich Mean Time) and Coordinated Universal Time (UTC) are essentially the same and serve as a global time reference, which doesn't change with daylight saving time.
What is the significance of the Prime Meridian, and where is it located?
The Prime Meridian is a significant line running through the Royal Observatory in Greenwich, London. It's used as the reference point for GMT (Greenwich Mean Time).
Why are time zones necessary, and how do they help with global coordination?
Time zones are necessary to standardize time across the world while accounting for Earth's rotation. They help coordinate activities, schedules, and international interactions.