Send the following on WhatsApp
Continue to ChatPublic holidays Commune Sins 2011 (Legally recognized holidays) https://www.feiertagskalender.ch/index.php?geo=184&jahr=2011&klasse=3&hl=en
Public holidays Commune Sins 2011 (Legally recognized holidays) https://www.feiertagskalender.ch/index.php?geo=184&jahr=2011&klasse=3&hl=en