There are several competitions where teams have to travel during the season and trips might even mean difference of several time zones. This is very prominent in KHL (9 hours between Vladivostok and Zagreb) but also in NHL (3 hours between Boston and Anaheim), probably some other competitions in USA, Russia and maybe some international leagues.
Do team and players have some strategies to help them deal with having to change time zones quite often?
As an example I can mention that I read here (article in Slovak language) that players of Slovan Bratislava (KHL) stick to the daily routine as if they were still in their time zone. (Which means, for example, going to sleep very late at night - local time - which would correspond to about eleven P.M. in Bratislava.)
Note that the question is not exclusively about ice hockey, similar problems might occur in many other sports. (I have mentioned ice hockey since this is where I noticed it.)