Question for science geeks?

Your AT the international date line, it's about to be the stroke of midnight from Sunday into Monday. As soon as the line hit's the midnight mark, you start traveling any way you like (car, bus, plane, train, roller skates, piggy-back on your grandmother, carrier pigeon, ball-bearings, I don't care what.) from west to east all the way around the world TO the date line, again and it takes you exactly 24 hours to make the trip. At the stroke of midnight, you cross over the line. Now, are you in Tuesday, Monday, again, or Wed?
Question for science geeks?
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