Instructions to Subscribe to a Calendar

iCalendar (*.ics extension) is a popular file format used to distribute calendar information between different applications over the internet. The feeds URLs and instructions for using them in the calendar programs Microsoft Outlook 2007, Apple iCalMozilla Lightning and Google Calendar are below.

iCalendar URLs - JROTC - SFS - Special Education - Teacher Center

Microsoft Outlook 2007/2010 Instructions

To subscribe to an iCalendar feed using Outlook:

  1. From Tools menu select Account Settings
    (In 2010) Go to File and from the Account Settings... menu select Account Settings
  2. Click on the Internet Calendars tab
  3. Click the New button
  4. Type or paste one of the calendar URLs above then click Add
    Outlook dialog
  5. In the Subscription Options dialog box, you can optionally rename the calendar. Make sure the box is checked in the Update Limit section.
    Outlook dialog

Apple iCal Instructions

To subscribe to an iCalendar feed using Apple's iCal program:
  1. Open the iCal program (in Applications)
  2. From the Calendar menu select Subscribe
  3. Type or paste one of the two feed URLs above into Calendar URL field then click Subscribe
    iCal dialog
  4. Change the name and color (optional) and update the Auto-refresh frequency to Every day (important!), then click OK
    iCal dialog
  5. The events should now appear in your calendar

Mozilla Lightning Instructions

Lightning is a calendar plugin for the popular email client Mozilla Thunderbird. You can add an iCalendar feed as follows:

  1. From the File menu in Thunderbird select New -> Calendar
  2. Choose On the Network and click Next
  3. Choose iCalendar format and paste or type the calendar URL from above in Location, then click Next
    Lightning dialog box
  4. Optionally change the Name, Color and notification option then click Next then Finish
  5. You can set the refresh frequency in Tools->Options->Lightning->General->Refresh Settings. Once or twice a day is sufficient.

Google Calendar Instructions

To subscribe to an iCalendar feed using Google Calendar:

  1. In the left column, click on the Add link in the Other Calendars section.
  2. From the menu select Add by URL.
  3. Enter the feed URL in the dialog box then click Add Calendar.
  4. There appears to me no way to manually set how often the calendar is refreshed.

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