In this article, we will take a journey into the world of time, learn about clocks and discover how we measure moments.
Time is an exciting concept that helps in our daily routine from waking up in the morning to going to bed at night. It helps us to organize our day and understand. Time can be defined as the ongoing sequence of events.
Measurement of Time
Time is measured by a clock. On a clock face, there are 12 numbers to know about the time. A clock consists of three hands:
In a digital clock, the numbers are related to hours, minutes and seconds, shown as:
Let's practice reading a clock:
This is how the minute hand's movement displays various times within one hour.
Quarters of Time
Understanding a "quarter of time" is a simple concept related to fractions of time. When we talk about a quarter of the time, we are referring to dividing time into four equal parts or segments.Each of these segments represents one quarter which is described using the figure:
Example: Which of the following options states the correct time for the clock shown below?
a) Quarter to 12
b) Quarter to 1
c) Quarter past 12
d) Quarter past 1
Answer: b) Quarter to 1
Explanation: The time is 12 : 45 which means quarter to 1.
Years, months, weeks, days, hours, minutes and seconds
Arrangement of the units of time in increasing order:
seconds < minutes < days < weeks < months < years
Time conversion includes:
Note:
a) 1 month can have 28, 29, 30 or 31 days depending upon the month.
b) 1 year = 365 days
c) 1 leap year = 366 days
d) 1 year has 52 weeks and one day whereas a leap year has 52 weeks and two days.
e) 1 week = 7 days
Understanding time in both the 12-hour and 24-hour formats is necessary. Here's a simple explanation of both formats:
12-Hour Format:
In the 12-hour format, we divide the day into two parts:
Ante Meridiem (AM) and Post Meridiem (PM).
The cycle of the day is shown as:
This format is often used to tell time on regular clocks and watches. To tell time in the 12-hour format, we use numbers from 1 to 12 followed by "AM" or "PM" to show whether it's morning, afternoon, evening or night.
24-Hour Format:
The 24-hour format is also known as the international time format. In this format, the entire day is divided into 24 hours and we don't use "AM" or "PM".
For example, 6:10 AM in the 12-hour format is equivalent to 06:10 in the 24-hour format and 8:45 PM in the 12-hour format is equivalent to 20:45 in the 24-hour format.
This clock shows both 12-hour and 24-hour formats.
Let's learn about terms related to days:
Let’s understand by taking an example:
Example: If a new baby was born on April 10, 2020, then what was his age on January 10, 2021?
a) 6 months
b) 8 months
c) 9 months
d) 12 months
Answer: c) 9 months
Explanation: The months of the new baby are shown as:
The age of the baby was 9 months.
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