Find difference between current time

Find difference between current time: Given two times h1:m1 and h2:m2 denoting hours and minutes in 24 hours clock format. The current clock time is given by h1:m1. The task is to calculate the difference between two timesin minutes and print the difference between two times in h:m format.

Examples:

Input : h1=7, m1=20, h2=9, m2=45
Output : 2 : 25
The current time is 7 : 20 and given time is 9 : 45.
The difference between them is 145 minutes.
The result is 2 : 25 after converting to h : m format.

Input : h1=15, m1=23, h2=18, m2=54
Output : 3 : 31
The current time is 15 : 23 and given time is 18 : 54.
The difference between them is 211 minutes.
The result is 3 : 31 after converting to h : m format.

Input : h1=16, m1=20, h2=16, m2=20
Output : Both times are same
The current time is 16 : 20 and given time is also 16 : 20.
The difference between them is 0 minutes.
As the difference is 0, we are printing “Both are same times”.

Approach:

  • convert both the times into minutes
  • find the difference in minutes
  • if difference is 0, print “Both are same times”
  • else convert difference into h : m format and print

Below is the implementation.

# Python program to find the
# difference between two times


# function to obtain the time
# in minutes form
def difference(h1, m1, h2, m2):
	
	# convert h1 : m1 into
	# minutes
	t1 = h1 * 60 + m1
	
	# convert h2 : m2 into
	# minutes
	t2 = h2 * 60 + m2
	
	if (t1 == t2):
		print("Both are same times")
		return
	else:
		
		# calculating the difference
		diff = t2-t1
		
	# calculating hours from
	# difference
	h = (int(diff / 60)) % 24
	
	# calculating minutes from
	# difference
	m = diff % 60

	print(h, ":", m)

# Driver's code
if __name__ == "__main__":
	
	difference(7, 20, 9, 45)
	difference(15, 23, 18, 54)
	difference(16, 20, 16, 20)

# This code is contributed by SrujayReddy

Output:

2 : 25
3 : 31
Both are same times

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