How to use install it on different Device / platforms :
Google Calendar : Click on +Google Calendar link on bottom right of calendar.
Calander Url: https://calendar.google.com/calendar/ical/calendar%40stxaviersworldschool.com/public/basic.ics
Iphone / Ipad : http://stxaviersworldschool.com/iphone-ipad/
Android : http://stxaviersworldschool.com/android/
Outlook : http://stxaviersworldschool.com/outlook/
Kontact : http://stxaviersworldschool.com/kontact/