Hi MissyG,
I personally have a very relaxed attitude to my eating times. It all depends on what is ahead of me for the day. I have been known to start eating at 11 a.m. or not until after 3.p.m. It does not matter so long as you are not going, significantly, over your time otherwise you then cut short your fasting time, something I'm very reluctant to do as I wish to reap as many of the, alleged, long term health benefits as possible. Most days, my 'window' is actually nearer 4-6 hours rather than 8 but that is fine. Today, for instance, I had a VERY substantial lunch at 2 p.m. and I now won't eat again till tomorrow lunchtime thus giving me a nice long fast.
Reduced calorie intake is something that seems to be a side effect of 5:2 and/or 16/8 and it just creeps up you but that is a good thing as it was overeating that got me too heavy in the first place. I have a fridge full of chocolate and where I would indulge EVERY day, and sometimes 2 or 3 times a day, now, weeks can go by before I even think about it. I also drink less wine, like a lot of people have also commented on, but again, I think this a good, if surprising thing.
Hope you get on well with whatever you do so, good luck and let us know how it goes,
Ballerina x