The PlayStation Store listings unlock GTA 6 at midnight in each region on November 19: New Zealand first, the UK at 00:00 UTC, and the US at 05:00 UTC, which is midnight Eastern. Rockstar has not published its own unlock table, and Xbox timing is not confirmed.
Tell us your country, your time zone and which store you use. When the pre-load opens on November 10, tell us what your store shows for the unlock, with a screenshot description if the store gives a time. Those reports are how the unlock table stays right.
Our release time page has the full list by country. If it disagrees with what your store shows, post it here.