Jumptheshark
Rebooting myself
They were also away for a pretty short time and if the management played their part as they should there is no need to switch 100% accurately to the time of the destination. Just organize the schedule in a way that allows the team to live at a schedule that's 1-2 hours closer to normal.
In the NHL you need to travel a lot anyway so they already have a lot of experience with this so I don't expect any problems in that area.
Flight time LA to NYC is about 4.5 hours. They've done that a few times