Nebula Voucher maximum days

Dear @DustMite,

Welcome to Zyxel Community!
The maximum day that can be set for vouchers is 1 year (8760 hours). When you are creating vouchers, once you type in an invalid number, there will have a popup message that tells you “Must be a whole number between 1 and 8760”.


For more information about vouchers, here we have an article, for your reference:
https://community.zyxel.com/en/discussion/10347/nebula-how-to-configure-captive-portal-with-voucher#latest

If there are further questions, please feel free to let us know.
Thank you.

Regards,
Nathan