40 min appointments but starting on the hour/half hour. Has anyone found a way?

Hi

I’ve successfully managed to come up with solutions for all sorts of appointment schedules throughout the year but with some forthcoming changes to our schedules I am completely stumped! Can anyone help?

– Our appointments last 40 mins.

– But they need to start at 11.30am (and then be at 12.10pm/12.50pm and so on)

If I set appointment length as 40 mins, the appointments can only start at 11am or 11.40am.

I suppose I could set appointment length as 10 minutes and then give the service provider a 30 minute break between each appointment, but the calendar would look really huge with 10 minute slots throughout the day!

Anyone got any ideas please?

Thanks

David