Hi
I have recently performed a month or two of night shifts and kept my meal times the same as I normally would over the weekend.
I ate breakfast at 6am before going to bed, I ate lunch at 15:00 when I got up and I had dinner around 19:00.
My night shifts were quite short which allowed me to do this but depending on your shift would decide if this would suit you.
The affects I found from doing this were as follows.
I found that my blood was a lot lower at 15:00 testing. My reason for this was because the duration between breakfast and lunch on a night shift was nearly 9 hrs (6am-15:00) where on a weekend it would be 5hrs (7am-12).
The other affect I had was that it was a struggle not to snack during work as I was going from 19:00 until 06:00 without a meal.
I was working from home so snack availability and testing was not an issue if I did suddenly need something.
After writing this maybe I was wrong in my approach but I thought it would be easier not changing any meal and injection times.
Let us know how you get on and what works for you.
All the best.
Regards
Adrian