How to make a program which takes input of time in 12 hrs and converts in 24hrs

Question

the input should be like
05:44:23PM

output
17:44:23

Answer 1

Console.WriteLine(DateTime.Parse("05:44:23PM").ToString("HH:mm:ss"));

Answer 2

if its PM , add 12 in hours part and for AM leave as it is

Answer 3

Be careful with 12h, though! 12am is 0h, and 12pm is 12h... There's no need to add 12 in these cases.