I have an employee form where the "Years of Service" date is calculated based on his/her hire date.

yos=dateofhire.days360(zoho.currentdate)/365;

When I view the record, the Years of Service is incorrect.

If I go in and create a new or edit the date of hire, the years of service calculates correctly.

How can I achieve this in the best way? 

Schedule update on a Daily schedule?

Create a "OnLoad" event?