The default timezone for nTuitive.social is CST - US Central Timezone.
Each Dashboard, however, can have its own custom timezone. When you are creating a Dashboard you are offered to choose the timezone that works best for you. You can also change the Dashboard timezone at any time by going to Settings > General.
Then click on "Modify Dashboard Settings" which will load a modal popup with settings. Click on "Reporting Timezone" and select your timezone from the dropdown.