 Burch noted.Lead Flight Director Tony Ceccacci noted that due to the length of the spacewalk, and the resulting slip in the timeline, the crew's sleep shift would have to be moved an hour later, to allow them to get the proper amount of rest, and the rest of the docked timeline would also be shifted forward an hour.After awakening, the crew set to work preparing for the mission's third spacewalk, one that was considered the most challenging and uncertain, yet had some of the highest priority items scheduled.