Day of the Week

 I told Barb I had an appointment to get a new CPAP a week from now. She said a Thursday and I said no a week from now is a Friday. Later in the day, Barb was wondering what time No Frills was open until and she rushed out of the house to get there before it closed. When she was at the cashier, she asked the lady if No Frills was always open this late. She said yes and Barb said really on a Saturday. And the lady looked at her strange and said today is Friday.