In Canada and US Labor Day is celebrated on the first Monday in September. In most of the other countries it is celebrated on 1st May.
In 2011, Labor Day in the U.S. is Monday, September 5th. Most countries celebrate the equivalent of Labor Day, International Workers' Day, on May 1st.
Sept. 5th the first monday is always the day labor day falls on
The first Monday of September in the U.S. and Canada
This coming monday, the 7th.