time difference

I woke up this morning, well, yesterday morning, well - er, I don't know when! I woke up on Saturday at 8:30am in Siena (so thats 2:30am in Boston). I ate breakfast, I packed up, I checked out, and I sat by the pool until about 2:30pm (thats 8:30am). Then I got in a cab, to a bus, to Florence. I arrived at the airport in Florence at 5pm (thats 11am). My flight was a touch delayed, and we left at 7:10pm (1:10pm). I arrived in Paris at 8:45pm (thats 2:45pm) and then boarded the plane for Singapore at 11:15pm (5:15pm). I arrived in Singapore at 5:30pm Sunday (5:30am Sunday in Boston).

At this point I've gotten to the hotel, explored a little, eaten something, showered, and I think it's time for bed...but I truly have no idea!