amarnath Ah, okay then. MySQL (and MariaDB) by default will pick up the time from the system - is this set correctly? You can run sudo dpkg-reconfigure tzdata to verify this, making sure to restart MySQL afterwards if anything changes. If you need to somehow set the timezone manually in MySQL, have a look at https://dev.mysql.com/doc/refman/5.5/en/time-zone-support.html as there are a few ways of doing so, and if the timezone has already been manually set, it'll need changed back.
Setting the layout in osTicket is done via Admin -> Settings -> System in the 'Date and time options' section. Make sure the timezone is set properly and locale is set to default (or change it manually if locale is somehow wrong). It's also worth checking your profile to make sure you're not over-riding the default value.
