Hi, My Locale Time Offset is set to my country time correctly (-4)

But when I create a new member from com_profiler registration, it give me a erroneous registerDate in my Sql database... Actually, the time show in the profil is correct.

But the fact that the data in DB is incorrect.. that give me some bugs somewhere else. (ex: showToday from cbTotalUsers module restart before the end of the day)

How to fix it ? can you tell me where the bugs is coming from ? the components, the server, the joomla ?? where exactly.