I know people say this every year but is it me, or is it getting darker earlier now?
I subconsciously noticed the light was going at 9:30pm the other night and kidded myself it should really happen in September?
We're past the summer solstice, so yes, it gets dark earlier every day.
Because of the sinosodial nature of the path of the sun in the sky, the change is more rapid at certain times of the year, than at others. Near the solstices, sunrise and sunset vary only by a few seconds every day, but near the equinoxes (?) several minutes of daylight are lost or gained every day.
Sunset in Liverpool is 20:50 today.