1. From Mission Control select More.
2. Select Global Settings.
3. Select Agency Details.
4. Select Other Settings.
5. Select Preferences.
6. Retype the field Default format of date picker field and Default placeholder of date picker field to the format you are looking for.
Example:
YYYY-MM-DD
DD-MM-YYYY
MM-DD-YYYY
To edit the format of how dates appear within a section:
1. Navigate to the Date question within the section.
2. Select Additional Properties → Initial View and select from Year, Day, or Month
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