Calculation of local time and longitude - SS1 Geography Past Questions and Answers - page 2

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

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

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.

 

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).

 

Time zones are necessary to standardize time across the world while accounting for Earth's rotation. They help coordinate activities, schedules, and international interactions.