The 24-hour clock is used in railway timetables, flight schedules, television, and
programme schedules.
Answers
Step-by-step explanation:
We normally use 12-hour clock system. The hour hand of the clock goes round the dial twice a day (24 hours). Some departments like railways, Airlines, etc use 24-hour clock system because they do not use a.m. and p.m. times.
In a 24-hour clock system, we express time in four digits. The first two digits represent hours and the last two digits represent the minutes.
On the dial there are two concentric circles. The inner circle has 1 to 12 numbers while the outer circle has 13 to 24 numbers.
24 Hour Clock
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In a 24-hour clock system, we start counting the time from midnight. Let us understand 24-hour system by considering some examples.
(i) 12 midnight is denoted by 24 00 hours or 00 00 hour.
(ii) 12 noon is denoted by 12 00 hours.
(iii) 6 in the morning is denoted by 06 00 hours.
(iv) 10:25 in the evening is denoted by 22 25 hours.
(10:25 + 12:00)
(v) 7:15 in the evening is denoted by 19 15 hours.
(7:15 + 12:00)