Warning: getdate(): It is not safe to rely on the system's timezone settings.

Buongiorno, ho appena installato dolibarr sul mio server online, solo che mi riporta questo errore: Warning: getdate(): It is not safe to rely on the system’s timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone ‘UTC’ for now, but please set date.timezone to select your timezone. in /var/www/vhosts/nome.dominio/sotto.nome.dominio/dolibarr/htdocs/core/lib/functions.lib.php on line 1702
Credo sia un errore causato da qualche parametro nel file php.ini riguardante la timezone e non riesco a configurarlo, versione Dolibarr 6.0.4