Check out example codes for "how to select time and date in datetimepicker in c#". It will help you in understanding the concepts better.

Code Example 1

dateTimePicker1.Format = DateTimePickerFormat.Custom;
dateTimePicker1.CustomFormat = "hh:mm:ss tt dd/MM/yyyy";
dateTimePicker1.ShowUpDown = true;
string dt = dateTimePicker1.Value.ToString("hh:mm:ss tt dd/MM/yyyy");

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