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USE 12- AND 24-
HOUR TIME
Use 12- and 24-hour time IN MATHEMATICS 5
To further process the activity and be able to integrate values,
the teacher will ask these questions:
1. If their 1st period starts at 7:30 AM, who was late for
school? Answer:
2. How many minutes was she late? Answer:
3. If Kim were your friend and classmate, what advice would
you give her to avoid being tardy?
 How many hours are there in one day?
Answer: 24 hours
 In an analog clock, how many hours can be seen in one
complete cycle or period?
Answer: 12 hours
 Since an analog clock has 12 hours in one cycle, how
many times does it complete a full cycle in a day?
Answer: twice
 In the Philippines, how do we distinguish between
10:00 in the morning and 10:00 in the evening? What
notations are typically used?
Answer: We typically use notations such as A.M. and P.M.
to distinguish between morning and evening (afternoon
included).
 A.M. and P.M. distinguish between morning and
evening in a 12-hour time system commonly used in
the Philippines. However, there is also a 24-hour time
format typically used by the military and other
countries.
 The 12-hour time format divides a 24-hour day into two equal
cycles or periods. The first cycle is AM, which means ante
meridiem (before midday) in Latin, while the second cycle is PM,
which means post meridiem (after midday).
 The 24-hour time format tells the time of the day, from midnight
to midnight, divided into 24 hours, and does not need to use AM or
PM to differentiate morning, afternoon, and evening.

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Use 12- and 24-hour time IN MATHEMATICS 5

  • 1. USE 12- AND 24- HOUR TIME
  • 3. To further process the activity and be able to integrate values, the teacher will ask these questions: 1. If their 1st period starts at 7:30 AM, who was late for school? Answer: 2. How many minutes was she late? Answer: 3. If Kim were your friend and classmate, what advice would you give her to avoid being tardy?
  • 4.  How many hours are there in one day? Answer: 24 hours  In an analog clock, how many hours can be seen in one complete cycle or period? Answer: 12 hours  Since an analog clock has 12 hours in one cycle, how many times does it complete a full cycle in a day? Answer: twice
  • 5.  In the Philippines, how do we distinguish between 10:00 in the morning and 10:00 in the evening? What notations are typically used? Answer: We typically use notations such as A.M. and P.M. to distinguish between morning and evening (afternoon included).  A.M. and P.M. distinguish between morning and evening in a 12-hour time system commonly used in the Philippines. However, there is also a 24-hour time format typically used by the military and other countries.
  • 6.  The 12-hour time format divides a 24-hour day into two equal cycles or periods. The first cycle is AM, which means ante meridiem (before midday) in Latin, while the second cycle is PM, which means post meridiem (after midday).  The 24-hour time format tells the time of the day, from midnight to midnight, divided into 24 hours, and does not need to use AM or PM to differentiate morning, afternoon, and evening.