Swiss National Day, 1 August – Expat Guide to Switzerland …

Celebrate the founding of the Swiss Confederation with a range of festivities held throughout Switzerland on 31 July and 1 August on ‘Bundesfeier’. Since 1891, the first of August has been celebrated as Swiss National Day, or Schweizer Bundesfeier (German), Fête Nationale Suisse (French), Festa Nazionale Svizzera (Italian) or Fiasta naziunala Svizra (Romansh).

: https://www.expatica.com/ch/about/culture-history/swiss-national-day-1-august-103060/