There is no hour too late, as long as you give me enough advanced notice (at least 24 hours or more). If you call or message me a day or more ahead of time and give me at least a general idea of your request, I will schedule any time that is convenient for you- any day or night, any hour- as long as I don't already have a prior committment for the time you request, of course.
Alternatively, I don't mind last-minute requestd, and will do my best to accomodate you if I can. However, I prefer not to be called between the hours of 1am- 8am, unless we have an appointment already scheduled during those hours. Feel free to email me, or text me, and wait for my response. Thanks!