@dhobern there might be an option to set the time. Most of them use 30 seconds.
i recomend You can use ente auth. You can see the next code if the first one of about to end.
https://ente.io/auth/
Thanks so much - Ente looks really promising - I'm trying it now.
No problem at present with the Ente-generated codes. The next code feature should help if my problem repeats.