If a holiday falls on a weekday, collections for the rest of the week will be pushed back a day. For a Thursday holiday, service would be on Friday, and Friday service would be Saturday. For holidays on Saturday or Sunday, there are no delays.
When the holiday falls on a weekday, collection will be delayed one day for the remainder of the week. For example if the holiday falls on a Thursday your service will be on Friday and Friday service will be on Saturday. If a holiday falls on a Saturday or Sunday, there will be no delay.