Can captive portal expiration be set to several days?

I would like to allow the users in our company to connect to the guest network with their phones, but having to enter the user / password every day is a pain.

I saw that there are a couple of variables that can be set, specially auth-timeout (here the document) and be set to a value of 24h.

Is there any way to set it to a value higher than this? The 1440 would allow a user to relogin only after the weekend, but if possible I'd like to set it something like 96h.