By row boat, it would take approximately 20 hours.
If the boat had an average speed of 40 kp/h the entire trip, it would take between 4-5 days to travel from NYC to Greece.
5 days
It would take 5 hours.
about 7 hrs
8.5 Hours !
10 hours.
3 hours
6 hours
Like about six hours
2 hours and 25 minutes
it takes 10 days