Populate text field with current time upon signing

Hi

I have used the following script from another thread to auto populate a text field with current date upon signing of a PDF form:

// JavaScript code to add the date at signing time

    var currentTime = new Date()

    var month = currentTime.getMonth() + 1

    var day = currentTime.getDate()

    var year = currentTime.getFullYear()

    var signingTime = day +"/"+month+"/"+year  //Modify into your preferred format

    var f = this.getField("Text1");  //Modify the field name as necessary

    f.value = signingTime;

(Original thread Can Acrobat auto populate a date field upon digital signature of a form?‌ I didn't want to ask on there since the thread was so old.)

This is working fine but I also want to add the current time to the box. This is to validate when a document was signed before being submitted and will work on 3 different signatures.

Any ideas would be much appreciated.