Google workspace addon to add a countdown timer
http://www.cs.ucr.edu/~vahid/usefulstuff/gdoc_addon/
https://developers.google.com/workspace/add-ons/how-tos/publish-add-on-overview
Google workspace addon to add a countdown timer
http://www.cs.ucr.edu/~vahid/usefulstuff/gdoc_addon/
https://developers.google.com/workspace/add-ons/how-tos/publish-add-on-overview