Many Power Apps solutions rely on user interaction to perform actions such as navigating between screens, saving data, or refreshing information. However, there are scenarios where these actions should happen automatically after a certain period of time. This is where the Timer control becomes extremely useful.

The Timer control enables makers to automate time-based actions without requiring users to press buttons or manually trigger events. Whether you're building a splash screen, refreshing data at regular intervals, displaying countdowns, or automatically moving users through a process, the Timer control provides a simple and effective solution.

This article explains how the Timer control works, its key properties, and several practical implementation examples.

What is the Timer Control?

The Timer control is an input control available in Canvas Apps that counts elapsed time in milliseconds. Once the configured duration has been reached, it can execute formulas or trigger application logic automatically.

Unlike a clock, the Timer is event-driven—it performs actions when a specified amount of time has passed.

Common scenarios include:

• Splash screens

• Session timeout warnings

• Auto-navigation

• Progress indicators

• Automatic data refresh

• Delayed notifications

• Sequential workflows

• Simple animations

Adding a Timer to Your App

Adding a Timer control is straightforward:

1. Open your Canvas App in Power Apps Studio.

2. Select Insert.

3. Choose Input.

4. Select Timer.

5. Position the control on your screen.

Once inserted, configure its properties according to your application's requirements.

Essential Timer Properties

Duration

Defines how long the timer runs before completing.

Example:

5000

This represents 5 seconds, since the value is measured in milliseconds.

AutoStart

Automatically starts the timer when the screen becomes visible.

true

Start

Controls whether the timer is actively running.

Example:

varStartTimer

This property is commonly connected to a variable.

Repeat

Determines whether the timer restarts after reaching the end.

true

or

false

Reset

Returns the timer back to zero.

true

or

Reset(Timer1)

OnTimerStart

Runs formulas immediately after the timer begins.

Example:

Notify("Timer Started")

OnTimerEnd

Executes when the timer finishes.

Typical examples include:

• Navigate to another screen

• Refresh data

• Update records

• Display notifications

• Start another timer

Example:

Navigate(HomeScreen)

Example 1: Creating a Splash Screen

One of the most common uses of a Timer is displaying a welcome screen before opening the main application.

Configuration:

OnTimerEnd:

Navigate(HomeScreen)

The user automatically enters the application after three seconds.

Example 2: Countdown Timer

A countdown provides visual feedback for users before an action occurs.

Timer settings:

• Duration = 10000

• AutoStart = true

• Repeat = false

Label Text:

Text(
RoundUp(
(Timer1.Duration-Timer1.Value)/1000,
0
)
) & " seconds"

The label continuously updates until the timer finishes.

Example 3: Progress Bar

A Timer can drive a simple progress animation.

Insert:

• Timer

• Rectangle

Rectangle Width:

Timer1.Value /
Timer1.Duration *
Parent.Width

As the timer progresses, the rectangle gradually fills the available space.

Example 4: Automatic Data Refresh

Instead of asking users to press a Refresh button repeatedly, the Timer can refresh information automatically.

Configuration:

• Duration = 60000

• Repeat = true

OnTimerEnd:

Refresh(Employees)

This refreshes the data source every minute.

Example 5: User-Controlled Timer

Sometimes users should decide when the timer starts.

Start Button:

Set(varRun,true)

Stop Button:

Set(varRun,false)

Timer Start property:

varRun

This provides complete control over the timer's execution.

Example 6: Sequential Timers

Complex user experiences sometimes require multiple timed events.

For example:

• Display welcome message

• Wait 3 seconds

• Show instructions

• Wait another 3 seconds

• Open main screen

Each Timer's OnTimerEnd event can trigger the next step in the sequence.

Best Practices

When working with Timer controls, consider the following recommendations:

• Use milliseconds for all duration values.

• Disable Repeat unless continuous execution is required.

• Control the timer with variables rather than hardcoded values whenever possible.

• Avoid extremely short repeating timers, as they may impact app performance.

• Keep formulas inside OnTimerEnd concise to maintain responsiveness.

• Test Timer behavior in Preview mode before publishing.

Common Business Use Cases

Organizations frequently use Timer controls to support business processes such as:

• Customer check-in countdowns

• Automatic approval reminders

• Dashboard refresh intervals

• Manufacturing process monitoring

• Training applications

• Quiz and examination timers

• Kiosk applications

• Digital signage

• SLA tracking

• Guided onboarding experiences

Troubleshooting Tips

If your Timer is not behaving as expected, verify the following:

• Ensure the Start property evaluates to true.

• Confirm the Duration is specified in milliseconds.

• Check that Repeat is configured correctly.

• Verify the OnTimerEnd formula contains no errors.

• Remember that Timers run in Preview or published apps, not during normal design mode.

Conclusion

The Timer control is a simple yet powerful feature that enables automation within Power Apps. By combining Timer properties with formulas and variables, makers can create more interactive, efficient, and user-friendly applications.

Whether you're building a splash screen, automating navigation, refreshing live data, displaying countdowns, or orchestrating multi-step processes, mastering the Timer control will help you deliver smoother user experiences while reducing manual interaction.

References

• Microsoft Learn – Timer Control for Canvas Apps

• C# Corner – Timer Control examples and implementation guides