Yes, the built-in Calendar app lets you add them. For your Mac: On your computer, open Calendar; In the top left corner of your screen, click Calendar Preferences. Click the Accounts tab. On the left side of the Accounts tab, click +. Select Google Continue. Enter your Gmail address, password, and verification code (if you have one). Download this app from Microsoft Store for Windows 10, Windows 10 Mobile, Windows 10 Team (Surface Hub), HoloLens. See screenshots, read the latest customer reviews, and compare ratings for One Calendar.