# Mathematics - Class 4 / Grade 4

- Time - Conversion
### Time - Conversion

Math - Class 4 - Time - Conversion(hour to minutes, minutes to hour, hour to seconds, seconds to hour, days to hours) - Key Points/Notes/Worksheets/Explanation/Lesson/Practice Questions Tags: Time conversion for grade 4, Grade 4 Converting Hours to Minutes worksheet PDF, How to Convert Minutes to Hours?, Convert Hours to Minutes practice page for 4rth standard, Converting from hours to minutes , Conversion of Hours into Seconds examples for fourth standard, How do you convert years into month? How many seconds are there in an hour and a half? How to convert minutes into hours and minutes? Minutes in seconds, days into hours, Minutes to hours. 1 hour = 60 minutes,1 minute = 60 seconds,1 hour = 60 x 60 = 3600 seconds,1 day = 24 hours, We always multiply when we change higher unit to lower unit. We always divide when we change lower unit to higher unit. Convert into minutes. Convert into seconds. Convert into hours. Convert into days and hours. Convert into hours and minutes. Convert into minutes and seconds. Convert 500 min into hours and minutes. Convert 500 min into hours and minutes.Time - Conversion

Important Points

1 hour = 60 minutes

1 minute = 60 seconds

1 hour = 60 x 60 = 3600 seconds

1 day = 24 hours

We always multiply when we change higher unit to lower unit.

We always divide when we change lower unit to higher unit.

Conversion of Hours into Minutes

Example 1: Convert 2 hrs 40 min into minutes

1 hr = 60 min

Therefore, 2 hrs = 2 x 60 = 120 min

2 hrs 40 min = 120 min + 40 min = 160 minutes

Conversion of Minutes into Hours

Example 1: Convert 180 minutes into hours

60 min = 1 hour

Therefore, 180 min = 180 ÷ 60 = 3 hours

Conversion of Minutes into Seconds

Example 1: Convert 5 min 37 sec into seconds

1 min = 60 sec

Therefore, 5 min = 5 x 60 = 300 sec

5 min 37 sec = 300 sec + 37 sec = 337 seconds

Conversion of Seconds into Minutes

Example 1: Convert 240 seconds into minutes

60 seconds = 1 minute

Therefore, 240 seconds = 240 ÷ 60 = 4 minutes

Conversion of Hours into Seconds

Example 1: Convert 4 hrs into seconds

**Note:**First convert hours into minutes and then minutes into seconds.__Hours into Minutes__1 hr = 60 min

Therefore, 4 hrs = 4 x 60 = 240 min

__Minutes into Seconds__Now, 1 min = 60 sec

240 x 60 = 14400 seconds

Example 2: Convert 3 hrs 10 min into seconds

__Hours into Minutes__1 hr = 60 min

Therefore, 3 hrs = 3 x 60 = 180 min

3 hrs 10 min = 180 min + 10 min = 190 minutes

__Minutes into Seconds__Now, 1 min = 60 sec

240 x 60 = 14400 seconds

Conversion of Days into Hours

Example 1: Convert 5 days 10 hrs into hours

1 day = 24 hours

Therefore, 5 days = 5 x 24 = 120 hours

5 days 10 hrs = 120 + 10 = 130 hours

Conversion of Hours into Days

Example 1: Convert 145 hrs into days and hours

24 hours = 1 day

Therefore, 145 hrs = 145 ÷ 24 hours

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