"Because something unexpected has come up, I wonder if I can change my appointment from Monday to Wednesday. "
He worked on Sunday,so he took Monday off in lieu.
"After Pete Sampras' exit form the US Open on Monday, many people had expected Andre Agassi to win his second US Open in a row."
"Because of something unexpected, I am afraid I have to move my appointment from Monday to Wednesday. "
Bank holiday ;day(not a Saturday or a Sunday)on which banks are officially closed,usu a public holiday(eg Easter Monday,Christmas Day,etc)
Today is Monday.
"Whether it is on Monday or Friday, in any case I'll need your help in the yard."
The next night, Monday, margaret and I were due to dine at the Osbaldistons
III. Application Period：From March 16, 2004 Tuesday to May 17 Monday; by correspondence postage pre-paid or by hand delivery.
"I said it was Tuesday, but in fact it was Monday."