Having a full time job has no impact on the advice given on this forum. All advice and input is given in good faith and based on experience. Everyone's schedule is different but the goals are all similar.
You're lucky that you haven't seen any negative effects "yet" from shooting an hour plus or minus.
In Chloe's case, shooting late isn't ideal because she's prone to ketones and needs the best control possible. She also reacts well to insulin most of the time (not when bouncing) so trying to stick to the schedule is best in her case.
Stuff happens and we have times when the shot must be late or early,
@Sienne and Gabby (GA) gave great advice on how to get back to normal shot time.