Having flight times as time, not the number of hours, makes things much easier! I don't think, pilots will measure the time with accuracy of second (or less)
In attachment, time cells are formatted in a way what allows flight hours over 24 hours.
Currently the attachment is only for schedules where all hours are distributed evenly. When you want the possibility e.g. for some pilot have only left seat, and another only right seat, then you must add a column where you enter the schedule number (e.g. when 1 then 2*Left+Out, when 2 then 2*Right+Out, when 3 then Left+Right+Out) and correct formulas in table tFTTable accordingly.