let hours = s.split(':')[0].toString();
let minutes = s.split(':')[1].toString();
let seconds = (s.split(':')[2].slice(0, 2)).toString();
let timeType = s.split(':')[2].slice(-2);

if (timeType == 'AM' && hours == '12') {
   hours = '00';
} else if (timeType == 'PM' && Number(hours) < 12) {
   hours = (Number(hours) + 12).toString();
}

return `${hours}:${minutes}:${seconds}`;

public static string timeConversion(string s)
    {
        try
        {
            // Parse the input time into a DateTime object
            DateTime parsedTime = DateTime.ParseExact(s, "hh:mm:sstt", CultureInfo.InvariantCulture);

            // Convert to military (24-hour) time format
            return parsedTime.ToString("HH:mm:ss");
        }
        catch (FormatException)
        {
            throw new ArgumentException("Invalid time format. Please use hh:mm:ssAM or hh:mm:ssPM.");
        }
    }

public static String timeConversion(String s) {

        return LocalTime.parse(s, DateTimeFormatter.ofPattern("hh:mm:ssa", Locale.US)).format(DateTimeFormatter.ofPattern("HH:mm:ss"));

    }

def timeConversion(s):
    hour = s[0:2]
    am_pm = s[8:10]

    if hour == "12":
        if am_pm == "AM":
            hour = "00"
    elif am_pm == "PM":
        hour = str(int(hour)+12)
    return f"{hour}{s[2:8]}"