Time - Class 2

  • What is Time?
  • Units of Time
  • In this article, we will take a journey into the world of time, learn about clocks and discover how we measure moments.

    What is Time?

    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:

    1. The big hand represents minutes.
    2. The small hand represents the hours.
    3. The thin hand represents seconds.
    Measurement of time in Analog Clock

    In a digital clock, the numbers are related to hours, minutes and seconds, shown as:

    Measurement of time in Digital Clock

    Let's practice reading a clock:

    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:

    Quarters of time

    Example: Which of the following options states the correct time for the clock shown below?

    Example of a clock

    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.

    Units of Time

    Years, months, weeks, days, hours, minutes and seconds

    Arrangement of the units of time in increasing order:

    seconds < minutes < days < weeks < months < years

    Conversion of One Unit to Another Unit

    Time conversion includes:

    • 1 year = 12 months


    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

    • 1 day = 24 hours
    • 1 hour = 60 minutes
    • 1 minute = 60 seconds
    • 1 hour = 3600 seconds

    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).

    • AM is from midnight (12:00 AM) to midday (12:00 PM).
    • PM is from midday (12:00 PM) to midnight (12:00 AM).

    The cycle of the day is shown as:

    Time cycle of a day

    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".

    • The hours run from 00:00 (midnight) to 23:59 (just before the next midnight).
    • It's a continuous count of time so there is no need to switch between AM and 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.

    12 hour and 24 hour formats

    Let's learn about terms related to days:

    • Today means the day we are in right now.
    • Yesterday means the day that came before today.
    • Tomorrow means the day that comes after today.

    Let’s understand by taking an example:

    Terms related to days

    Example: If a new baby was born on April 10, 2020, then what was his age on January 10, 2021?

    picture of a baby

    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:

    Time Explanation2

    The age of the baby was 9 months.

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