# 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```