My google's calendar doesn't update.
Unfortunately, Google's Calendar updates the iCal feeds only once a day. Our feed is updated live and all changes should be instant, but the refresh rate of the calendar view always depends on the calendar software and although most such programs do update upon every refresh, Google's Calendar doesn't.
We're sorry for the inconvenience and we also hope that Google will change this in the future.
I know this is posted over a year later, but I've had this same trouble. Even though it's supposed to sync once a day, it doesn't. It doesn't reflect updates even after 24 hours passes. Any suggestions?
Did you recently add it, and it stopped working, or it has never worked? Have you tried removing the feed, and re-adding it?
I recently added it several weeks ago. It never has seemed to update. I have tried readding it, yes.
So you added the URL, and once you saw the yellow "Importing.." message at the top and no errors? Please try doing that but once you see the message, close GCal, and come back a bit later.