Budapest City Sightseeing Bus
 

Seems a good way to see the city. Does the ticket run literally for 24 or 72 hours which ever you choose> For example if you purchase the ticket at 11.00 is it valid for literally 24 pr 72 hours from that time presumably that means the time you board the bus

Don't bother
 

The Budapest sightseeing bus is the worst we have ever been on in Europe. Commentary muffled and does not synchronise with the attraction so useless. Not enough buses. A waste of money