Basic settings

Time parameters

Set the time parameters:


Set sound volume of Start Clock:

Sound off


Sound on


Max volume



Automatically maximize in main timing window:


Fullscreen. In fullscreen mode, there is no menu available in the main timing window. To enter Settings, long press (tap and hold) in the main timing window. For devices that do not have physical back and home buttons, Swipe upwards from the bottom edge of the screen to show these buttons.

Max brightness

Max brightness.

Colours for text and background

Choose light or dark colour theme. Select custom to pick colours for:

Information texts

Edit a short message, which is displayed in the main timing window.

Select text colour Select text colour

Select text colour.

Aligned left Centered Aligned right

Align text (left, center, right).

Delete text Delete text

Delete text.

Decrease text size Increase text size

Adjust the text size.

Move up Move down

Position the text vertically.

Steady text Flashing text

Control if and how fast the text is flashing.

Transparent text Opaque text

Adjust text transparency (opacity).

Advanced settings


Time zero

Enter zero time point hh:mm:ss.

If using Time zero together with Start list, read more under Start list below.

Time adjustment

The entered value ± is added to current time.

Background image

Display a picture or a logo.

Select and preview

Select and preview image.

Position upper left Position upper center Position upper right

Where to place the image. Tap to toggle between the 9 different positions. Works best for small images that don't fill the screen.

Cropped Entire image Fitted

Display a cropped image, the entire image, or a fitted (stretched) image. Tap to toggle. Works best for images that are larger than the screen.

Auto rotate Rotate 0° Rotate 90° Rotate 180° Rotate 270°

Rotate image. Tap to toggle between Auto, 0°, 90°, 180° and 270°.

Clear background image

Stop displaying the image.

Decrease size Increase size

Reduce image size (1–100%). Use decrease/increase buttons or move slider.

Start list

Display an imported start list, or try this function with the built-in demo start list.

One column displayed in landscape orientation Two columns displayed in landscape orientation

Select one or two columns in landscape orientation. Always one column in portrait orientation.

Info about imported start list

Show details about the imported start list.
Show the start list.

Decrease text size Increase text size

Adjust text size. Adjust clock size.

The number of participants that can be displayed simultaneously is maximum 30 (15 if one column landscape), but is usually limited by the screen size.

Interval start — Start Clock shows the participants who will start at the next start signal. All contestants start with a fixed time interval.

Chasing start (pursuit) — Start Clock displays each competitor as his/her start time is approaching, then gives a start signal. Settings for chasing start:

Workflow overview

Start list workflow

Import start list

How to find the import file

Troubleshooting import

Supported file formats

How to use Time zero together with Start list

Time source

GNSS time

Start Clock adjusts the time given by the device's internal clock with a correction, which is updated once per second with GNSS time. If no GNSS update is received, the built-in clock is used, adjusted with the latest correction.

Place the device in an open area with a clear view for a large part of the sky. Trees and buildings as well as weather conditions may prevent accurate timing. Reliable GNSS time is achieved only after several minutes of use. Do not use indoors!

Tap on the satellite icon in the main timing window (upper right corner) to display GNSS status:

Orange satellite (blinking)

Locating satellites (blinking).

Orange satellite

Running, fair quality.

Green satellite

Running, good quality.

Grey crossed satellite

GNSS unavailable. Android™ Location switched off.

Grey forbidden satellite

Android permission Location not granted.

Red satellite

GNSS failure.

Start window

The start window lasts for, as an example, ±5 sec relative to the start time (actual length is controlled by the setting Get ready). When the start window is open, the Start text colour is used; at all other times Normal text colour applies.

False start

Detect a false start by connecting an external start gate to the device (experimental). If the gate signal is received before the given reaction time has elapsed, a false start is signalled:

The false start detection is activated at the first Get ready beep and is deactivated during the start second when the reaction time has elapsed. Outside that time window, any signal from the start gate is ignored.

The start gate is connected to the device through the headset interface. The signal from the start gate shall correspond to the button Play/Pause/Hook (the centre button) of the headset.


Try the function by connecting a headset and use the centre button to simulate the signal from the start gate.


Automatically take a picture at the start signal using the back facing or the front facing camera. Requires Android version 5 or later.

Low latency High quality

Request the camera to prioritize speed (low latency) or quality. Some cameras ignore this setting.

Flash off Flash on Flash auto

Set flash option (off, on, auto).

Picture taken Picture taken

A picture has been taken (main timing window).

Show preview Hide preview

Show/hide preview (main timing window).

Camera error Camera error

Error when taking picture. Click on the icon to display an error message (main timing window).

If False start is enabled, pictures will only be taken at false starts.


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Good to know:


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