I've just replaced the battery in the boot of my SL; had to set the clock via the command system, but can only set the hour, the minutes will only increment in 30 minute intervals.
Is there any way I can set the exact time in minutes, as I'm 4 minutes out now?

 

it will adjust ....its going by navigation time. usuallly after driving it will change to the correct time. also set the time zone and daylight savings. you might be able to set in your cluster..to set time in synch with COMAND or not.