Comparing AM and PM in C#

Question

Im comparing time. See I have this code

            DateTime t1 = DateTime.Now;

            DateTime StartMorningCleaning = Convert.ToDateTime("6:00:00 AM");
            DateTime EndMorningCleaning = Convert.ToDateTime("6:59:59 AM");

            DateTime StartMorning = Convert.ToDateTime("7:00:00 AM");
            DateTime EndMorning = Convert.ToDateTime("6:59:59 PM");

            DateTime StartNightCleaning = Convert.ToDateTime("7:00:00 PM");
            DateTime EndNightCleaning = Convert.ToDateTime("7:59:59 PM");

            DateTime StartNight = Convert.ToDateTime("8:00:00 PM");
            DateTime BeforeMidnight = Convert.ToDateTime("11:59:59 PM");

            DateTime Midnight = Convert.ToDateTime("12:00:00 AM");
            DateTime EndNight = Convert.ToDateTime("5:59:59 AM");

Im trying to compare the current time if its in between Start and end times. The problem is when i go the the PM part it doesnt work and i have no idea why. Starting from StarNightCleaning up to EndNight. Any ideas why? here is my code in the comparing section

            if (t1 >= StartMorningCleaning && t1 <= EndMorningCleaning)
            {
                MessageBox.Show("Morning Cleaning Time");
                CleaningTime = false;
            }
            else if (t1 >= StartMorning && t1 <= EndMorning)
            {
                MessageBox.Show("MorningTour");
                CleaningTime = true;
            }
            else if (t1 >= StartNightCleaning && t1 <= EndNightCleaning)
            {
                MessageBox.Show("Night Cleaning Time");
                CleaningTime = false;
            }
            else if (t1 >= StartNight && t1 <= BeforeMidnight)
            {
                MessageBox.Show("NightTour");
                CleaningTime = true;
            }
            else if (t1 >= Midnight && t1 <= EndNight)
            {
                MessageBox.Show("NightTour");
                CleaningTime = true;
            }

Answer 1

Use Hour property and try reduce logic to numbers.

int t1 = DateTime.Now.Hour;             
if (t1 >= 6 && t1 < 7) {
    MessageBox.Show("Morning Cleaning Time");
    CleaningTime = false;
} else if (t1 >= 7 t1 < 19) {
    MessageBox.Show("MorningTour");
    CleaningTime = true;
} else if (t1 >= 19 && t1 < 20) {       //PM
    MessageBox.Show("Night Cleaning Time");
    CleaningTime = false;
} else if (t1 >= 20 && t1 <= 23) {      //PM
    MessageBox.Show("NightTour");
    CleaningTime = true;
} else if (t1 >= 0 && t1 <= 5) {       //AM - this if can be just else (remove if part)
    MessageBox.Show("NightTour");
    CleaningTime = true;
}