TFA HiTrax Tip Handbuch Seite 22

9.1 Setting the Daily Alarm Mode
Press and hold the [mode] button to select the setting display
The 'hour' digits start to flash. Press the [start/stop] button or [reset]
button to scroll through the setting.
Cnfirm with [mode] button. Set the 'minute' digits in the same way.
Press and hold the [mode] button to exit the setting sequence. The
setting display will change to Currant Time Mode automatically if
NO keystroke has been activated for 1 minute.