The last time I went overseas, I wore two watches on the plane, one set to Sydney time and one to Paris time. It was handy for keeping track of arrival times. Once I got to Paris, I tucked the Sydney time watch away so I could refer to it if I needed to, and kept on wearing the one on Paris time.

For my trip back to Sydney, I wore both watches on the plane again, and took the Paris one off when I got home. It worked well.