How to add observance days in Google Calendar?

Adding Holidays and Observances on Google Calendar involves these easy steps :

1. Tap the three lines near the Google Calendar icon. It opens up the Setting options.

2. Scroll and find the ‘other calendars’ option and click the + sign.

3. Click ‘Browse calendar of interest’

4. Look for all the observance days that you want to select and check the blue box.