Desktop: Unknown function 'apoc.date.format'

I'm new to Neo4j, querying the Desktop localhost from a JavaScript test file.

I have a date field and the following query works:
MATCH (n) RETURN n.due_date

But I want to format it in UTC format before returning. I saw some example of date format in this forum and tried the following query:
MATCH (n) RETURN apoc.date.format(n.due_date, 'ms', 'MMM d yyyy', 'PST')

But this gives the error Unknown function 'apoc.date.format' in browser console. How can I use the apoc functions in the desktop version?

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(migrated from khoros post Solved: Re: Desktop: Unknown function 'apoc.date.format' - Neo4j - 53869)