Replace www.google.cn/maps

Hello,

I am in China, and we can only access part of google resources as we are blocked by Firewall.

we can not access https://maps.google.com, but we can access to https://www.google.cn/maps.

In the event calendar, there is google map function, but we can not use it, can we make it works by replace that google map address?

If yes, would you please let me know how to replace https://maps.google.com to https://www.google.cn/maps in the event calendar？

Thanks, and have a nice day.

Alex