“I really hope they don’t try to make it shorter than this. Because I really don’t want to worry about certificate expiry during a vacation.”
You might want to consider force-renewing all your certs a few days before your vacation. Then you can go away for over 40 days. (Unless something else breaks…)
Might not be a bad idea if it is within their rate limit rules but I'd really rather not take a manual action before leaving a system alone for a while and not worry that I managed to force renew every single cert.