Question

When I create an event and then access it via Google Script, I notice that the endTime overruns the actual day I set the event for. This can be very problematic when iterating over days in the calendar to get events.

Example:
Go into a Google Calendar and set an all day event with the standard defaults for todays date. Then execute the following code:

function foo() {
  var cal = CalendarApp.getDefaultCalendar();
  var date = new Date();
  var events = cal.getEventsForDay(date);
  Logger.log("Events for today: "+date);
  for (var i=0; i<events.length;i++) {
      Logger.log(events[i].getTitle());
      Logger.log(" "+events[i].getStartTime());
      Logger.log(" "+events[i].getEndTime());
  }
  date.setDate(date.getDate()+1);
  Logger.log("\nEvents for tomorrow: "+date);
  events = cal.getEventsForDay(date);
  for (var i=0; i<events.length;i++) {
      Logger.log(events[i].getTitle());
      Logger.log(" "+events[i].getStartTime());
      Logger.log(" "+events[i].getEndTime());
  }
}

Example output (from Google Script log):

Events for today: Wed Jul 04 2012 19:39:12 GMT+0200 (CEST)
Test
 Wed Jul 04 2012 02:00:00 GMT+0200 (CEST)
 Thu Jul 05 2012 02:00:00 GMT+0200 (CEST)

Events for tomorrow: Thu Jul 05 2012 19:39:12 GMT+0200 (CEST)
Test
 Wed Jul 04 2012 02:00:00 GMT+0200 (CEST)
 Thu Jul 05 2012 02:00:00 GMT+0200 (CEST)
OK

Answer 1

I’ve now revisited this issue 3 different times looking for solutions. The ONLY reasonable solution i can find is to create a new calendar at GMT+0. Then all “all day” events will align properly within a single day.