All your considerations are OK. You only have to add 165 days to the date of 11-01-year:
. So the date when they will meet again is the 25-06-year.
You are supposed to know that
1 km = 1000 m = 100,000 cm
1 h = 60 min = 3600 s
Since 1 m = 0.001 km the speed of the 2nd turtle is: