1: On a computer, open Google Calendar. You can only get the code to embed in your website from a computer, not the Google Calendar app.
2: In the top right, click Settings Settings and then Settings.
3: Click the Calendars tab.
4: Click the name of the calendar you want to embed.
5: In the “Embed This Calendar” section, copy the iframe code displayed.
6: Open your website editor, then paste this code where you want the calendar to display.
Your embedded calendar will only be visible to people you’ve shared it with. To allow all visitors to see your calendar, you’ll need to make it public.all visitors to see your calendar, you’ll need to make it public.
The code you get from google should look something like this.
<iframe src=”https://calendar.google.com/calendar/embed?src=wildenstein%40frontiernet.net&ctz=something/amsterdam” style=”border: 0″ width=”800″ height=”600″ frameborder=”0″ scrolling=”no”></iframe>
Now login to your CMD site and add a new page using the page type of custom. Once you have done that just paste you code you for the google calendar into the page and save it.
Thats it! Now you have a calendar on your site. For more information and other options plese check out this google page. https://support.google.com/calendar/answer/41207?hl=en