This in from Wightlink, in their own words, Ed
The 0745 and 0845 sailings from Lymington tomorrow (Saturday 12 April) will be departing five minutes earlier, at 0740 and 0840.
This is to allow the earlier sailing ship from Yarmouth to pass just outside the river without causing delay to passengers.
The re-timed sailings will continue for the rest of the year and our timetable has been updated accordingly (see website).
Image: davidcjones under a CC BY 2.0 license