Hi Yan, I had 6 full weeks daily of radiation a long time ago (6 yrs) and if I recall correctly, I was all over the map for the time of day I had it. I usually opted for the mid morning to early afternoon and I had to drive myself there to and from...I sometimes cried all the way not wanting to go but knowing I had to if I wanted to survive. Well, it must have worked cause here I am 6 yrs later so whatever works for you and your hubby...DO IT. I really wasn't tired (I had no chemo) till about the 4th week when it seemed to affect my swallowing. I do remember resting a lot in front of the tv set so maybe the morning is better for your hubby. This way he can rest and you can still be free without worry to run any errands you may have without tiring him out. It does get better in time....God is good....