# Python program to convert time
# from 12 hour to 24 hour format
# Function to convert the date format
def convert24(str1):
# Checking if last two elements of time
# is AM and first two elements are 12
if str1[-2:] == "AM" and str1[:2] == "12":
return "00" + str1[2:-2]
# remove the AM
elif str1[-2:] == "AM":
return str1[:-2]
# Checking if last two elements of time
# is PM and first two elements are 12
elif str1[-2:] == "PM" and str1[:2] == "12":
return str1[:-2]
else:
# add 12 to hours and remove PM
return str(int(str1[:2]) + 12) + str1[2:8]
# Driver Code
print(convert24("08:05:45 PM"))