How to Change your Date Format
Navigate to your Settings
Under General Settings, Select Date Format
Choose Between MM/DD/YY or DD/MM/YY in the drop-down menu
Refresh and you're all set!

NOTES: Currently, you’re not able to do this on the iOS or Android app. But, you can actually log into the web application on a browser on your mobile device to make the change!
How to Change your Time Zone
Click on Settings
Under Timezone, select your timezone from the drop-down menu
Refresh and you're all set!
