London hopper fare explained. Unlimited changes per day / hour ?

Does London hopper fare allows to do unlimited free changes on bus per day or per hour ?

The standard Hopper fare allows to do unlimited free bus and tram changes within 1 hour of the first boarding. This hopper fare is available every day, so it doesn't matter whether is Monday, Saturday or Bank holiday.

But there was the new Summer Weekend Hopper fare introduced. It is valid on Saturdays and Sundays from 25th July to 31st August 2026. On these days, you can make unlimited bus and tram journeys during the day for a single flat charge.