You can opt to use the Time field between the 12-hour or 24-hour time format. If you want to change the time format of the Time field, select the field in the Form Editor and go to the Edit Field panel on the left. Afterwards, use the Time Format dropdown and select your desired time display. If you choose the 12 hour time format, the form visitors may choose between the periods AM and PM by using the dropdown that appears next to the input.
The default value now can be used for both the 12-hour or 24-hour clock time format of the Time field. This will automatically fill in the current time the online form is opened and filled out by the form visitor.