In Nebuchadnezzar's dream, how many "times" would pass while he had the mind of a beast?

Answer: Seven

The decree said his mind would be changed from that of a man to that of a beast "till seven times pass him by."

“Let his mind be changed from that of a man, and let him be given the mind of a beast till seven times pass him by.”— Daniel 4:16 (BSB)