Some form fields require a date and possibly a time as input.
You can use the built-in calendar for this, which opens when you click on a date field.
Alternatively, you can always fill in the field using the keyboard.
Please note the specified date and time format for your direct entries so that the values can be clearly recognized.
You can check the correct format by clicking the mouse outside the input field or by pressing the TAB key. The entered value is then interpreted and displayed as it would be saved.