May 1st.
September 7th
The 4th of September.
May 1
Sept 1
Mother's Day 2012 is June 3 in France.
In the US, Labor Day is the first Monday in September. The actual date varies according to the calendar for the given year.
The First Monday in September
Sep 8
September 5, 1884
Labor Day was Monday, September 2 in 1974. It is always the first Monday of September. That was set by law and does not change.
Labor Day was Monday, September 7 in 1992. It is always the first Monday of September. That was set by law and does not change.
There is nothing special the first of March in France, but there is the labor day the first of May.