I need a way to show in a field the dates between two fields.

Hi @Whimsical_help8665,

Thanks for reaching out. 

Yes, this is possible using JavaScript in Adobe Acrobat (JavaScript for Acrobat Forms). You can write a custom script that reads two date fields and fills another field with a list of dates between them.

Suppose the field names are:

• StartDate

• EndDate

• AllDates → this is the field where the result will be displayed.

var start = this.getField("StartDate").value;

var end = this.getField("EndDate").value;

if (start && end) {

    var startDate = util.scand("mm/dd/yyyy", start);

    var endDate = util.scand("mm/dd/yyyy", end);

    if (startDate <= endDate) {

        var dates = [];

        var currentDate = new Date(startDate);

        while (currentDate <= endDate) {

            dates.push(util.printd("mm/dd/yyyy", currentDate));

            currentDate.setDate(currentDate.getDate() + 1);

        }

        event.value = dates.join(", ");

    } else {

        event.value = "Start date must be before end date.";

    }

} else {

    event.value = "";

}

Let us know how it works. Wait for more inputs from experts.