Converting Dates to Actual Day Names

I have a rather large database that others fill in daily. I need to know for my reports the name of the weekday that these events occur on. I need to have the weekday name or Sat, Sun filled in automatically based on the date. Otherwise, I have to go through at the end of the month and check and edit every transaction to make sure it was done correctly. I don't know VBA very well, so bear with me if it's necessary. Thank you so much. Access 2007