Late booking error

Hi, I’m 100% confident that is a dumb issue, but I’m being unable to resolve this problem.

I can’t make the late-booking system work properly.
I’m developing a website for an Italian friend from Australia, but looking at the php source it seems that uses only UTC references, so this shouldn’t cause any issue.

Anyway my local test server is configured for Melbourne time and I’ve double checked it setting the local time both through .htaccess and php.ini files.

The late booking doesn’t work consistently, often displaying the late booking error (currently set at 30 minutes) even when selecting a time amply after this margin.

Also I’ve never seen the “bookings can not be made in the past” error and maybe the issue is in how the if in line 232 of booking.class is conceived.

The test website is antenati2.tk should you wish to give a look at it.

Thanks in advance for your help!

https://www.ads-software.com/plugins/restaurant-reservations/