My 2000 honda accord has a continuiing problem of not wanting to start after I travel somewhere and turn off the engine. It takes about 30-40 minutes for it to start again. Happens in hot weather.

Is the engine cranking and not starting? Or is there no crank? When this occurs check if some lights (on the instrument panel) aren't lit when the key is turned to the on position!! If there is unlit lights **** as engine, abs, airbag etc. Its your ignition switch!!(there is a TSB recall on 1997-2000 hondas. Check your local honda dealer for info on this. Ignition switch failure is common on honda vehicles and usually gets worst in warmer weather.