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For the quick tool Date format, it seems that displaying it none or making it hidden using custom CSS code would work.
But I would recommend to try the following widgets first, that might help or suits your needs most.
1. Search in the widget bar the Date Picker and DateTime Single
2. For the Date Picker, you can follow the screenshot to where to set the date format.
3. For the DateTime Single widget, you can also check the screenshot below to see how the date was formatted.
I hope this helps. Let us know if you need further assistance on this.