Wow, this was a really hard challenge! I made a few mistakes, but mostly I had some bad luck. I ended up spending way more time in town 1 and 3 then I wanted to.
World 1: Week 3, Day 5, 2:43 PM
China: Day 6, 9:22 AM
World 2: Week 4, Day 1, 0:19 AM
France: Day 3, 2:14 AM
World 3 Week 6, Day 7, 1:33 PM
Egypt: Day 2, 11:06 AM
Town Time = 59315
Vacation Time = 11442
Total = 70757