Getting Started with WinForms Clock

This article shows how you can start using RadClock.

Adding Telerik Assemblies Using NuGet

To use RadClock when working with NuGet packages, install the Telerik.UI.for.WinForms.AllControls package. The package target framework version may vary.

Read more about NuGet installation in the Install using NuGet Packages article.

With the 2025 Q1 release, the Telerik UI for WinForms has a new licensing mechanism. You can learn more about it here.

Adding Assembly References Manually

When dragging and dropping a control from the Visual Studio (VS) Toolbox onto the Form Designer, VS automatically adds the necessary assemblies. However, if you're adding the control programmatically, you'll need to manually reference the following assemblies:

Telerik.Licensing.Runtime
Telerik.WinControls
Telerik.WinControls.UI
TelerikCommon

The Telerik UI for WinForms assemblies can be install by using one of the available installation approaches.

Defining the RadClock

To add a RadClock to your form, drag a RadClock from the toolbox onto the surface of the form designer.
To programmatically add a RadClock to a form, create a new instance of a RadClock, and add it to the form Controls collection.

Adding a RadClock at runtime

RadClock clock = new RadClock();
this.Controls.Add(clock);

Dim clock As New RadClock()
Me.Controls.Add(clock)

The control has three important properties:

Value: Used to get or set the value of the control
ShowSystemTime: Indicated whether the control will display the system time
Offset: Allows you to set time offset - useful to display different time zones

Now let's create a simple application. 1. Add four RadClocks to your RadForm and on the top of each, place a label. 2. Set the labels text to - Sofia, London, New York and Tokyo. 3. In the code behind, set the ShowSystemTime property of the first clock (assuming that your system time show the time in Sofia). 4. For the rest of the clocks, set their Offset properties to: -2, -6, +7:

sofiaClock.ShowSystemTime = true;
londonClock.Offset = new TimeSpan(-2, 0, 0);
newYorkClock.Offset = new TimeSpan(-6, 0, 0);
tokyoClock.Offset = new TimeSpan(7, 0, 0);

sofiaClock.ShowSystemTime = True
londonClock.Offset = New TimeSpan(-2, 0, 0)
newYorkClock.Offset = New TimeSpan(7, 0, 0)
tokyoClock.Offset = New TimeSpan(-6, 0, 0)

Here is the result:

RELATED VIDEOS
WinForms RadClock Getting Started with RadTimePicker and RadClock for WinForms In this video, we are going to demonstrate the new RadTimePicker and RadClock controls as well as several properties you should be aware of.

Getting Started with WinForms Clock

Adding Telerik Assemblies Using NuGet

Adding Assembly References Manually

Defining the RadClock

Adding a RadClock at runtime

See Also

Telerik UI for WinForms Learning Resources

Getting Started

Support Resources

Community