Welcome to the Zoom Community, @Jafmar.
Zoom will record to the Cloud for as long as you need it. But be aware of the amount of storage available on your account. A Zoom Pro account gets 5G of storage, and depending in your recording settings, you might generate as much as 4G per hour or more.
See the Cloud Storage options on the Zoom pricing page here:
https://zoom.us/pricing
This Zoom Support page might also be helpful to you:
https://support.zoom.us/hc/en-us/articles/205347605-Managing-and-sharing-cloud-recordings
Good luck with your event!!