Task: Open the DigiCal App, select the setting icon go to the general to change the in English(US) and Agenda in default view. 
Steps:
Open the DigiCal App
Click on the More Menu Icon 
Swipe up the Menu to see the Setting Icon 
Click on the Setting Icon 
Open the General Option 
Click on the Language Option 
Select the English (US) Option 
Click on the Default View 
Select the Agenda Option 
Click on the OKAY Button to Apply the Changes in the Digical App Setting