I'm trying to convert completion() in a portal report from interval to seconds

Hi Chris, do you mean you want total_completion_time() in seconds and milliseconds?

If so, adding a report column with the following definition should give you seconds to the left of the decimal and milliseconds to the right;

=fixed(
(
(
(
total_completion_time() / milli()
)
/1000)
),
3)

Thanks Steve, have implemented into a task report so have changed total_completion_time() to completion() and it works perfectly!