Convert hours and minutes using 60 minutes per hour. A 24-hour time identifies a clock reading; elapsed time is a duration. When crossing midnight, track the date as well as the time. Example A flight leaves City A at 22:40 on Monday and lasts 7 hours 35 minutes. On A time it arrives at 06:15 Tuesday. City B is 3 hours behind A, so the local arrival is 03:15 Tuesday. For a reverse problem, first express departure and arrival in the same time zone, then subtract. A later local clock reading does not by itself measure flight time. Use the time-zone difference stated in the question.

Convert hours and minutes using 60 minutes per hour. A 24-hour time identifies a clock reading; elapsed time is a duration. When crossing midnight, track the date as well as the time.

A flight leaves City A at 22:40 on Monday and lasts 7 hours 35 minutes. On A time it arrives at 06:15 Tuesday. City B is 3 hours behind A, so the local arrival is 03:15 Tuesday.

For a reverse problem, first express departure and arrival in the same time zone, then subtract. A later local clock reading does not by itself measure flight time. Use the time-zone difference stated in the question.

Ratio, Rate and Speed

Cambridge IGCSE Mathematics 0580. Initial catalogue covers the assessed demands of February/March 2026 Paper 22; further Core and Extended mappings require paper-level scope review.

Timetables and time zones

Timetables and time zones