You can specify the date and time formats used in input bulk import file.

Date Formats

Time Formats:

Format	Example	Description
HH:mm	13:30	H - Hour in a day (0-23) m - Minutes in hour
hh:mm a	01:30 PM	h - Hour in am/pm (01-12) a - AM/PM marker
K:mm a	1:30 PM	K - Hour in am/pm (0-11)
k:mm	13:30	k - Hour in day (1-24)

How to add new date format value ?

Navigate to Home → Extras → Dropdown Manager
Click on the Date Format row. This will show you the list of date formats configured in the system.
Click on +Add button.
Specify the Dropdown value as M/dd/yyyy and save it by clicking on the Add button. Refresh the page

5. Navigate back to any bulk import screen, you should be able to see the newly added date format.

OpenSpecimen