Need help with source code

// Constructors
public TimeTO() {
    this(0, 0, 0); // Default to midnight
}

public TimeTO(int hour, int minute, int second) {
    setTime(hour, minute, second);
}

// Setters
public void setTime(int hour, int minute, int second) {
    setHour(hour);
    setMinute(minute);
    setSecond(second);
}

public void setHour(int hour) {
    if (hour = 24)
        throw new IllegalArgumentException("Hour must be 0-23");
    totalSeconds = (totalSeconds % 3600) + (hour * 3600);
}

public void setMinute(int minute) {
    if (minute = 60)
        throw new IllegalArgumentException("Minute must be 0-59");
    totalSeconds = (totalSeconds / 3600) * 3600 + (totalSeconds % 60) + (minute * 60);
}

public void setSecond(int second) {
    if (second = 60)
        throw new IllegalArgumentException("Second must be 0-59");
    totalSeconds = (totalSeconds / 60) * 60 + second;
}

// Getters
public int getHour() {
    return totalSeconds / 3600;
}

public int getMinute() {
    return (totalSeconds % 3600) / 60;
}

public int getSecond() {
    return totalSeconds % 60;
}

// toString method to return the time as a String in the format HH:MM:SS
@Override
public String toString() {
    return String.format("%02d:%02d:%02d", getHour(), getMinute(), getSecond());
}

public static void main(String() args) {
    TimeTo time = new TimeTo(13, 27, 6);
    System.out.println("The time is: " + time);

    time.setHour(23);
    time.setMinute(59);
    time.setSecond(59);
    System.out.println("The updated time is: " + time);

    time.setTime(0, 0, 0);
    System.out.println("The time reset to: " + time);
}