If you would like to view all the events on your Website calendar in your Google Calendar, iCalendar or Outlook calendar, you can subscribe to a calendar 'feed'.
Login your Tithely Admin account and select Sites from the left menu. Or login to your site directly.
Open up your website calendar (yourdomain.com/events/calendar)
Open your Google Calendar in another tab.
On your website's calendar click the Subscribe to Calendar button.
Copy the calendar RSS URL
Go to your Google Calendar and click the Add other Calendar + button, and select From URL.
Paste in the calendar feed URL you copied previously, and click Add Calendar.