Getting UTC timestamps of iCal with Timezone using the mozilla-comm/ical.js lib

utcTimestampsWithTimezone.js

//Please note I'm also using underscore each function for the iterations

//iCal -> jsCal
var icalEvents = ICal.parse(iCalStringData);
//jsCal->Component
var comp = new Component(icalEvents[1]);

//Get all VTIMEZONE iCalendar components
var vtimezones = comp.getAllSubcomponents("vtimezone");
//Add all timezones in iCalendar object to TimezonService
//if they are not already registered.
_.each(vtimezones, function (vtimezone) {

    if (!(ICAL.TimezoneService.has(
        vtimezone.getFirstPropertyValue("tzid")))) {
        ICAL.TimezoneService.register(vtimezone);
    }
});
//Get all VEVENT iCalendar components
var vevents = comp.getAllSubcomponents("vevent");
var events = [];
var eventCount = 1;
_.each(vevents, function (vevent) {
    var event = new Event(vevent);
    //Get the datetime info in UTC format with appropiate offset
    var startDate =  new Date(event.startDate.toUnixTime() * 1000);
    var endDate = new Date(event.endDate.toUnixTime() * 1000);
    console.log(eventCount, " - - - - - - - - - - - - - - - - - - ");
    console.log("UID:", event.uid);
    console.log("Recurrent?", event.isRecurring());
    console.log("Start:", startDate);
    console.log("End:", endDate);
    //This also depends on the correct timezone to be present in TimezoneService
    console.log("Duration:",event.duration.toString());
    console.log("Lugar:", event.location);
    console.log("Organizer:", event.organizer);
    console.log("Atendees:", event.attendees);
    console.log("Summary:", event.summary);
    console.log("Description", event.description);
    console.log("\n");

    events.push(event);

    eventCount++;
});