Time Systems and Elapsed Time

Vocabulary and duration concept flashcards derived from clock system conversions and elapsed time word problems.

12-Hour Clock System

A timekeeping convention in which the 24 hours of the day are divided into two 12-hour periods known as AM and PM.

24-Hour Clock System

A timekeeping convention in which the day runs continuously from midnight (00:00) to 23:59 without using AM or PM.

Elapsed Time

The measure of time that passes from the start of an event to the end of that event.

Reading Duration (09:25 to 12:40)

The duration calculated from 09:25 to 12:40, equal to 3 hours and 15 minutes.

Train Ride Duration (15:18 to 19:55)

The total elapsed time for a train journey departing at 15:18 and arriving at 19:55, equal to 4 hours and 37 minutes.

Science Fair Duration (08:30 to 15:15)

The length of time an event lasted when opening at 08:30 and closing at 15:15, equal to 7 hours and 45 minutes.

Bus Trip Duration (06:17 to 10:05)

The total duration of a bus journey departing at 06:17 and arriving at 10:05, equal to 3 hours and 48 minutes.

Nap Duration (13:15 to 19:00)

The elapsed time spent napping from 13:15 to 19:00, equal to 5 hours and 45 minutes.

Overnight Flight Duration (23:30 to 02:15)

The total duration of a flight taking off at 23:30 and landing at 02:15 the next day, equal to 2 hours and 45 minutes.