Recording / Showing Exact timestamp

I have created an application to help with the clocking in and out of employees for a large scale group. I am trying to make it as easy for the operator as possible, so having to type in the current time is a little more work. The operator himself is vision impaired, so he uses special equipment just to magnify the computer screen, so the need for ease has me streamlining the whole operation. Currently, with every try, I have not been able to display the current time with the -

input.Date_field = zoho.currenttime;

This only seems to display the date in the data view window.

Is there something I'm missing here with displaying the time?

Thanks for any help!

- Josh Davis