@barbarita, thanks for setting the Fast-5 tent!
(I couldn't help to add 5 hearts)
I've been doing the 5 hour window for 10 days and honestly it has been pretty easy! I won't say that I don't get the hunger pangs, I do but because I did 5:2 last year, I knew that they would pass and food would be available in just a few hours. The advantage is that now I don't need to worry at all about counting calories during my window and I love the consistency of doing the same thing everyday. Having said that, I also felt very comfortable at the beginning of 5:2 but once I fell off the wagon I couldn't get back, so the ultimate test will be when I for some reason interrupt the routine.
This is what I do:
I wake up and drink some coffee while my daughters have breakfast, then I don't eat anything until around 4pm (some days it has been closer to 3-3:30pm). I break my fast with a fruit, usually a banana and then eat some snack time food, like crackers, cheese, seeds, veggies. At around 7 or 8pm I eat regular dinner with the family and call it a day. Some days I've eaten dessert, some not, sometimes I eat something else but nothing after 9pm. Usually I am full after dinner so it is not a problem for me. I go to bed at around 11pm or later and wake up at around 7:30am. I've had a few hunger pangs at around 12-2pm but I just drink some water and get busy.
For those not familiar with Fast-5 I highly recommend the book (you get it for free on the website:
http://www.fast-5.org/ ) Not only because of the diet but of the whole philosophy. Dr. Herring uses the acronym: D.I.E.T. Did I Enrich Today?