We have a general google calendar that is accessible to everyone.
Use this link to add it to your Google calendar: https://calendar.google.com/calendar/u/2?cid=c29sYXJAdXdtaWRzdW4uY29t
Click this link on an iPhone to subscribe to the iCal: https://calendar.google.com/calendar/ical/solar%40uwmidsun.com/public/basic.ics