Today at 4:24 am GMT, the apparent yearly path of Sun around the ecliptic reached its northernmost point. That means
a) to us in the Norn Hemisphere: It's downhill from here. Every day will have shorter sunlight hours than the one before, from now on until almost Christmas, even though Summer ist still ahead of us
b) to tubeswell: Birght days ahead. Winter may be about to start, but you're in for a lot more light those coming months
c) to our Agent at the Equator, Masctep: Forget it. This doesn't affect you.