Military Time code challange (challange bug or hidden problem in my code?)

Question

In this challange we should change the 12 hours clock to 24 hours clock.
Sample input == 1:30 PM
Sample output == 13:30

My code👇👇
time = input()
if time[-2:] == "PM" :
conv = int(time[:-6]) + 12
print(str(conv) + time[-6:-3])
else:
print(time[:-3])

It doesn't work for some hidden test cases so I don't know what is the problem but I tested it in my ide(on pc) and it worked just fine. I'm so confused!

Answer 1

For input 12:00 AM, output shloud be 00:00
For 12:00 PM => 12:00
For single digit input like 1:00 AM, output should be 01:00 (display 2 digits 0 appended..)

Answer 2

Jayakrishna🇮🇳 yes you are right I didnt noticed that thank you for your assistance I really appreciate it