MSMuniappan Subramanian Syncfusion Team November 13, 2018 12:17 PM UTC
Hi Mark Tannehill,
Thank you for contacting Syncfusion Support.
Based on the provided information, we have achieved your requirement with “Customize the Day of week Header in SfCalendar”. We have achieved your requirement by using CustomDayLabels property of SfCalendar. We have prepared the sample, please find the sample from the below link,