Login and go to Apps module
Search for World Clock app
Search for the World Clock app using the search field. Click Create App
Click the World Clock app card, then click Create App in the app details panel. Enter app name
Enter a Name for the app. Select clock type
Select Regular Clock or World Clock from the Clock Type dropdown. Select time format
Select the Time Format (Analogue or Digital, 12-hour or 24-hour). Enter timezone
Enter up to six Timezone values for the locations you want to display. Select language
Select a Language from the dropdown list. Select color scheme and preview
Select a Color Scheme and click Preview to see the app preview. Create the app
Click Create App to save the app.
Minimum supported height/width for the clock app is 300. If the height or width is less than 300, the app may look distorted.