Peak seasons - Christmas and Easter.
Summer time - June - Mid August. Around 9am - 11am every morning is the worst time.
Malcolm,
I did it again today.....
From Disney turn off on US 192 to :
Formosa Gdns Blvd (Indian Creek, Sunset Lakes, Rolling Hills area etc) 2 miles - 4 minutes.
Lindfields Blvd - 4.7 miles - 7 minutes
US 27 turn off - 6.9 to 7.2 miles (ramp is 3/10 mile) - 9.5 minutes
Highlands Reserve - 10.1 miles - 13 minutes
Westridge / Hampton Lakes - 10.8 miles - 14 minutes
Calabay Parc - 11.9 miles - 15 minutes.
Note all times were set at quietest part of day (around noon) and with very little traffic on roads. Further, the journey from Disney to location is usually the easiest way.....ie., a morning journey into Disney will not be as quick.