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Allow user to set hours,minutes and seconds in dateTimePicker object

How to allow user to add hours,minutes and seconds in dateTimePicker object?
Currently, the datetimePicker only have day/month/year... want to add hours,minutes and seconds.

Set the Format Property to "Custom" and the CustomFormat Property to include time
dateTimePicker1.Format = DateTimePickerFormat.Custom;
dateTimePicker1.CustomFormat = "dd-MMM-yy hh:mm:ss";

You can format to Custom and then change the CustomFormat to dd-MMM-yyyy hh : mm : ss tt
datetimePicker.Format = DateTimePickerFormat.Custom;
datetimePicker.CustomFormat = "dd-MMM-yyyy hh : mm : ss tt"

Date Time Picker Custom Format

this is my code:
dateTimePicker1.ShowUpDown = true;
dateTimePicker1.CustomFormat = "HH:MM";
dateTimePicker1.Format = System.Windows.Forms.DateTimePickerFormat.Custom;
Hi I use Custom Format for my dateTimePicker until do not show second but its format hide AM/PM in dateTimePicker how can show AM/PM in this format

just add tt for AM/PM.
dateTimePicker1.CustomFormat = "HH:mm tt"
and it should be mm for minutes.
Custom Date and Time Format Strings

DateTime picker C# format

I have a DateTime picker to add arrival time to a list, I have 2 questions about it:
How can I get it to show dates like 12-Jan-2012 Instead of 12/01/12?
How can I get it to show the time after the date but not the current time, as thats what is shows atm.
My current code is not very advanced its just:
theVisit.ArrivalTime = DateTimePicker1.Value

Something like this will display the date and time:
DateTimePicker1.Value.ToString("d-MMM-yyyy hh:mm:ss");
To override the default DateTimePicker settings, you can do this:
DateTimePicker1.Format = DateTimePickerFormat.Custom;
DateTimePicker1.CustomFormat = "d-MMM-yyyy hh:mm:ss";
You can show a different time by modifying the format string, e.g.:
DateTimePicker1.CustomFormat = "d-MMM-yyyy 12:00:00";
or even
DateTime otherTime = DateTime.Now;
DateTimePicker1.CustomFormat = "d-MMM-yyyy " + otherTime.ToString("hh:mm:ss");

For it to show in that format in the picker, set the properties below
dateTimePicker1.Format = DateTimePickerFormat.Custom;
dateTimePicker1.CustomFormat = "dd-MMM-yyyy hh:mm:ss";

You're looking for DateTime Format strings. There's a great article on them on MSDN.
There's two types:
Standard DateTime Formats
Custom DateTime Formats
You can use these to construct the datetime to look how you want it to.
For your example, you would use :
DateTimePicker1.Value.ToString("dd-MMM-yyyy hh:mm:ss")

First, to alter how your DateTimePicker displays DateTimes:
DateTimePicker1.CustomFormat = "d-MMM-yyyy hh:mm:ss";
DateTimePicker1.Format = System.Windows.Forms.DateTimePickerFormat.Custom;
Your code:
theVisit.ArrivalTime = DateTimePicker1.Value;
Would not change, because the DateTimePicker1.Value isn't any different, it's just displayed according to your format.
If you want the control to display a specific time (not the current time), you have to give the control that value:
DateTimePicker1.Value = new DateTime(2012, 12, 21, 23, 59, 59);
Otherwise it will display the current time as of the form creation.

You may check datetimepicker like this to check if it is empty.
if(DatTimePicker1.Text.Equals(" "))
{
MessageBox.Show("DateTimePicker is empty");
}

swicthing format on dates using the datetimepicker

I'm using the datetimepicker to get two dates. They are coming out like this: 24-11-2011..
I want to have them like this: 2011-11-24..
I've tried to accomplish this by doing this method, but its only changes the datetimepicker on the interface..
DateTimePicker1.Format = DateTimePickerFormat.Custom;
DateTimePicker1.CustomFormat = "yyyy-MM-dd";
This is my code. The output says 24-11-2011. I want it to say 2011-11-24.
string sta = dateTimePicker1.Value.ToShortDateString();
string en = dateTimePicker2.Value.ToShortDateString();
Console.WriteLine(sta);
ctrscan.getListOfDates(sta, en);
How can I do this?
thanks

The Value property of the DateTimePicker control will return DateTime type, not string.
To format this have such code:
string myDate = DateTimePicker1.Value.ToString("yyyy-MM-dd");
To change it "globally" change the default in the machine Regional Settings.

Change your System Date Format then only it will display correctly using Console.WriteLine(sta);

C# DateTimePicker Custom Format

How do I set a DateTimePicker to out put dd/mm/yyyy.
At the moment it is giving me the day, date, month then year.
Thanks.

dateTimePicker1.CustomFormat = "dd/MM/yyyy";
dateTimePicker1.Format = DateTimePickerFormat.Custom;

dateTimePicker1.CustomFormat = "dd/MM/yyyy";
dateTimePicker1.Format = DateTimePickerFormat.Custom;

You need to set the property DateTimePicker.Format to DateTimePickerFormat.Custom and set your desired format in the DateTimePicker.CustomFormat property.

// Set the Format type and the CustomFormat string.
dtpDeliveryDate.Format = DateTimePickerFormat.Custom;
dtpDeliveryDate.CustomFormat = "dd-MM-yyyy";