Thanks for the post...
In Layout mode, highlight the field and choose Date Format (Right click on PC, pulldowns on Mac).
It gives you many options for formatting including those you asked about.
first question: Yes, place the date symbol ( // ) into your layout , select it and: Format >> Date >> choose your preferencies.
second question: I do not understand, can you explain better ?
Thanks a million. I finally got it.
The second question was about the day of the month but it's okay now.