mundrameenaxi's post in How to change week start in calendar date picker from monday to sunday in jasper server? was marked as the answer
Stop the jasperserver tomcat services.
Navigate to folder jasperreports-server-cp-6.4.0apache-tomcatwebappsjasperserverscriptsbower_componentsjquery-uiuii18n
Open the date picker file for specific local for which week start has to be changed.
Change the firstDay: 0 as per below screenshot(0 is Sunday, 1 is Monday and so on)
jasperreports-server-cp-6.4.0apache-tomcatwebappsjasperserveroptimized-scriptsbower_componentsjquery-uiuii18n
Open the respective datepicker file and change the firstDay: 0
Start the jasperserver tomcat services
The week start is now changed from Monday to Sunday
