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24-hour time in Python
Suppose we have a string s. Here s is representing a 12-hour clock time with suffixes am or pm, we have to find its 24-hour equivalent.
So, if the input is like "08:40pm", then the output will be "20:40"
To solve this, we will follow these steps −
hour := (convert the substring of s [from index 0 to 2] as integer) mod 12
minutes := convert the substring of s [from index 3 to 5] as integer
if s[5] is same as 'p', then
hour := hour + 12
return the result as hour:minutes
Let us see the following implementation to get better understanding −
Example
class Solution: def solve(self, s): hour = int(s[:2]) % 12 minutes = int(s[3:5]) if s[5] == 'p': hour += 12 return "{:02}:{:02}".format(hour, minutes) ob = Solution() print(ob.solve("08:40pm"))
Input
"08:40pm"
Output
20:40
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