I'm just about to buy my pass, but am confused by the 'date of use?' question. I understood the clock started ticking from the date I first used the pass. I'll be arriving in Japan on 15 March, but not sure whether I'll use the pass that day, or 16 March, or possibly not until 17 March. If I put '15 March' on the booking form but don't start using it until 17 March, does it run for 14 days from 15th, or 14 days from 17th? This matters to me as I'm staying in Japan for just over two weeks, but not long enough to justify a 21 day pass!
Many thanks
