Weekday starts with the "Sunday" on the Gantt chart as shown in the attachment . I want to start it on Monday or some other day. Can you please guide us on how we can achieve this?
By default this is defined by the loaded locale. So if you need this to be changed everywhere you'd better make your custom locale.
And if you need this on the Gantt level only use this config: https://www.bryntum.com/docs/gantt/api/Gantt/view/Gantt#config-weekStartDay