Set your interface theme and time zone from your account preferences.
Open your preferences
Click your avatar in the bottom-left of the sidebar
Click
Settings
Preferences is the default tab.
Interface theme
Select an option from the Theme dropdown under Profile:
Light
Dark
System - matches your computer's theme setting
Time zone
Select your time zone from the Time zone dropdown, directly below Theme. Clarify uses it for notification timing and for displaying times throughout the product.