The ground station and the web client both need to be aware of the 'mission clock'.
A launch time should be set via the web client and sent to the flight software.
Mission clock display on the web client with start time, and time elapsed.
Have a method to reset this clock and to pause it.
This will be used to do sequencing on the FC side
Need to detect clock sway, especially when on the ground.
The ground station and the web client both need to be aware of the 'mission clock'. A launch time should be set via the web client and sent to the flight software.