I'm sure this is possible since the Arma 3 "EXILE" mod does it.
Can we get a separate setting to accelerate night? This would help with people that find extended night periods hard to play on. Would be good to have an 8 to 10hr period of day with maybe an hour of night but at the moment; the way acceleration is set up; it's not doable using the acceleration setting by itself.

Also would be nice having a more granulated setting of acceleration, such as 2.5x or 2.25 etc...