Mission command "Delay" in ArduRover

Hello everybody,

Question: Is there a way to have a Delay mission command in Ardurover, just like in Copter? I would like to refer to the absolute UTC time, i.e. wait until 8:30 to start mission.

I know, this question has been asked twice by Dorian in
Mission command "delay" in absolute time with APM:Rover? and
Command delay in absloute time and polygon fence in rover
but apparently there’s no solution so far.

I’m happy about every hint!