how to add current date and time in date-time field on load of the form

how to add current date and time in date-time field on load of the form

Hi,

how to add current date and time in date-time field on load of the form 

date = zoho.currentdate;
time = zoho.currenttime;

this is the code i have tried; but either date or time i am getting in different variables, so how can i store both into one variable and use that variable in input.field name

Please let us know.

Thanks and Regards,
Sidhant A.