Carb cycling and eating late help

yes it matters big time if you dont get all your calories not only are you in ketosis starving your body your muscles,organs,and brain of carbs you will give it more starvation with a deficit of calories and your body will eat away your muscle and fat storage. what you can do is change your eating habits instead,
             instead of 6 meals get all your macros and calories in 5 meals on the 5th meal make sure its low in carbs and fat (low fat greek yogurt or cottage cheese is what everyone seems to like) then go to sleep that way you have some protein for the 6-8 hours youre asleep.

its a quick way to remove a little bit of stubborn belly fat if you are ripped and lean and dont want to burn too much muscle while losing that fat. but carb cycling for a long period of time (say longer then 6 months) is believed to be bad for your health in the long run. because you are essentially starving your muscles, organs, and brain. so to stop rambling and answer your question it has the benefit of losing body fat faster then you would with cardio. but thats the only benefit there is.

Bold to emphasis.

A mild and consistent caloric deficit.