Hi @jasmyn​ 👋

You know it's hard to update all working hours for on day :/ In Intercom it's not yet possible to just define holidays by date (Or even use country base holidays, like google calendar) but you can set-up bot for this and add not in messenger:

I Think that define holidays by entering dates will be a nice feature, Google calendar has such feature inserting all public holidays by country. 

You should submit this feedback to @Product Wishlist​ , maybe someone from Intercom product team see this suggestion.

Hope this helps in you case.

It isn't ideal but I save these and find I can often reapply them. Only takes me a couple of minutes to apply them to each of my team inboxes.