Last week, in order to make up for time lost during a work holiday, I asked my manager if I could work a few extra hours each day during the week.
After my schedule was adjusted, an event came up requiring me to reschedule. I emailed my manager, and had Thursday reverted back to my normal working hours.
Another event has come up, and I now want to adjust my work hours again. I'm currently only scheduled to work 1 extra hour on Friday, so would be a fairly minor adjustment. However, I'm worried that a third schedule change within a week may come off as pestering, rude, or inconsiderate to my manager.
Is it rude to ask to have my schedule adjusted more than once during a week?