I'm using a rule to send out emails when a node is created. Under Action and Message body, I insert [node:field_calendar_date]. The token is replaced with (for example) "2012-12-14T08:00:00" in the email message, but I would like it to be replaced with "Friday, December 14, 8:00am" (same date, but a different format).

I tried to follow format_date(), but it doesn't work.

How can I get the format I want?