Recently during a meeting, my colleague show his screen on the projector and he happened to click on his windows 10 calendar on the bottom right.  Immediately, I saw that calendar was in bilingual.  That prompted me to check how the settings was done.

To activate the windows 10 Chinese lunar calendar, first click the Date and time settings.

Next, look on the right of the screen where you can see the sentence “Show additional calendars in the taskbar”.

Click and select “Simplified Chinese (Lunar)” and you are done.

Now, you will be able to see the windows 10 lunar calendar in bilingual mode.