Gmail Calendar Not Syncing On Iphone. If you cannot sync google calendar on your iphone, you can try adding your google account again on your iphone by following these steps. Go to google calendar > select your profile (the coloured circle with your initial in the upper right corner) > manage accounts on this device > icloud will appear in the list (noted as a 'system account') >.

We understand that you’re having trouble with your google calendar. Enable google calendar in iphone.