facebook ics events bug

fb_events_ics_bug.md

All .ics files exported from Facebook events appear (incorrectly) on the day prior to the event.

Here's a case:

This event takes place all day on 08/26, in my neighborhood, in my time zone.

event page: https://www.facebook.com/events/483089031719027/

screenshot of event in facebook: http://cl.ly/image/1r3Z2P1l2K2S

screenshot of event in ical: http://cl.ly/image/3W3P1K0J2X17

.ics export from facebook http://cl.ly/1a3d2b3L1P0V

inside the .ics file: DTSTART:20120825

Update

A friend exported the .ics from the same event and got this one, which has the correct DTSTART:20120826
http://cl.ly/3w1h2J034717

Bug is weirder than I thought.