Irrespective of Apigee, Converting times is tricky.
You need to know the timezone and the daylight savings status. Here's a related discussion of the issue.
My advice would be to delay or defer conversion of times, and allow the client to perform that work. The client = the browser, or some other system.
What are you really trying to do? Why do you need to convert a time from one timezone to another?
LinkedIn
Twitter
