Yes I always set exposure and other image settings differently for night and advocate for the same. Make sure you using the Customized Scene option in Working Mode in the Camera / Image menu and then using the slider and selecting the Time Plan Settings (Day, Night, General etc of your choice) create the colored portions of the slider using your mouse. For example, day and night on the slider would ultimately appear as areas of orange and areas of purple. Make sure you copy that to the desired month(s) then click apply. Go to the profile at the top of that window, change to day or night or other (depending on which one you want to adjust settings for) and dial in accordingly. Then click apply again at the bottom. A good test (assuming night where you are now) is to do all of the above and manually choose Day from the Profile dropdown and click apply. If you've set your schedule up correctly then when you go click Refresh at the bottom of the screen you should see it switch back to night (or whatever Time Plan you setup for the corresponding time) switch over. Working on all of mine right now.
The new web GUI with multiple Time Plan settings actually becomes a lot more flexible since you can have many different setting changes through any given day then setup differently for different months too BUT is a different approach and not all will like it