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8 Timeime
Learning Outcomes
Students will be able to learn:
• reading and writing of time in a.m./p.m. and 12-hour and 24-hour clock time.
• conversion of 12-hour clock time into 24-hour clock time and vice versa.
• conversion of days to hours and hours to minutes.
• to read a calendar to find a particular day and date.
We use clocks and watches to read time. Let’s understand
how to read time using them. Look at the face of the clock minute
given alongside. We can see two hands in it. The longer hand hand
is called the minute hand and the shorter hand is called the hour
hand
hour hand. A clock has numbers 1 to 12 written on it. It also has
many big and small markings on its face. The bigger markings
are for hours and the smaller markings are for minutes.
When the hour hand moves from one number to another, we call it one hour. The minute
hand moves faster than the hour hand. It completes one full circle of the clock face in one hour.
Reading Time
We usually read time in hours and minutes.
Reading the Hour Hand
When the hour hand is at any number and the minute hand is at 12, 11 12 1
the hour hand tells us what time it is. 10 2
For example, if the hour hand is at 4 and the minute hand is at 12, 9 3
the time is 4 o’clock or 4:00. 8 7 6 5 4
The hour hand goes round the clock in 12 hours. A day has 24 hours
in it. So the hour hand has to take two rounds of the clock in one day.
A day is divided into four parts.
• The time when the sun rises is morning.
• The time when the sun sets is evening.
• Noon is the time when the sun is directly over our head. The time between noon and
evening is called afternoon.
• The time between evening and morning is night.
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