apache-poi NPOI: Data validation constraint approach for Date, Time , List Item , email etc. for XSSF(.xslx) excel file using c# Set the Time Constraints for Field Values Between 00:00 To 23:59 with Date Format HH:MM;
Example
dvConstraint = (XSSFDataValidationConstraint)validationHelper.CreateTimeConstraint(OperatorType.BETWEEN, "=TIME(0,0,0)", "=TIME(23,59,59)");
