# Python program to find difference between current time and given time

• Difficulty Level : Hard
• Last Updated : 30 Jan, 2020

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 times in 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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