Our normal SLA hours are 08:00 - 17:00. Our office closes at 13:00 on 22 December 2023.
I can only add a full day as a holiday on the calendar so that is not an option.
If I change the working hours for that Friday from 8:00 to 13:00, won't it recalculate all historical SLAs?
And if I change the working hours back to 8:00 - 17:00 on the following Monday, won't it simply recalculate the SLAs for 22 December?