Train from Rome to Florence
 

Does anyone know how many hours the train ride from Rome to Florence takes? Is there an overnight option for these two cities?

I don't remember precisely how many hours (someone undoubtedly will), but it was just a few hours. The only time we did this it was a day trip from Rome. We left in the morning on Eurostar, visited the Duomo, had lunch, wandered about, crossed the Ponte Vecchio, did some shopping, had a gelato and took the train back to Rome, arriving in late evening. The time is too short to have the option of an overnight trip.

It's only and hour and a half!

If you take non-stop Euro Star (ES) or the Rapido, it only takes 1 1/4 to 1.5 hours. If you take the local (IC) it will take 3-4 hours, this train stop at every stop.

By all mean, take the faster ES or Rapido. They cost about twice the price, but well worth it. They are cleaner and less chance of local scam artist being on them.

Eurostar hourly takes 1.75 hours versus the IC trains that take 2.5 hours; IR regional trains can take 3 or more hours. No night trains, too close. Eurostars may cost more and require reservations - you can just hop on IC trains though seat reservations may be advisable. Two trains an hour. IC trains cost about $25 each way in second class and $45 in first class - first class much nicer and on Eurostar trains you get a bit of free food and drink in first class.