Timezone settings determine how deadlines appear in your account and calendar. When you set up your account, the timezone is automatically set to UTC.
This timezone is your personal timezone, so only affects your displayed due dates. You should ensure that your timezone is correctly set to your local time so that your due dates are always accurate for you. In your Timezone settings you can specify your week start day.
It's not possible to set the global timezone for your account (all users), but it's on our future roadmap.
1. Go to your Personal Settings
2. Edit your timezone
Choose the time zone you're currently in and your week start day.
3. Update your settings
Select ‘Save changes’ to update your Timezone settings.