Best Practices for Adding Holidays to Calendar

[jnix612]

I now understand MS Team Calendar does not have a feature like desktop Outlook where I can automatically add US holidays. What a shame. Question before I proceed to adding one by one, are there any best practices anyone recommend? Any situations I should avoid? At some point the calendar is going to link to other areas. I would prefer to get it correct the first time. 

[#2]

This can be added centrally in the Teams Admin Center

[#3]

Admin center..... Thank you!

[#4]

@Juan Carlos González Martín They have removed "Org-wide settings" from TAC. Can't find the holiday option anymore. You know more about it?

*edit* Found it under Voice.