How to change the day demarcation time to 9:00 Published: 10/26/2008Updated: 03/30/2017Author: shuCategory: Project settingsTags: You can change the day demarcation time according to the following steps. Steps: 1.Select [Schedule] – [Project Settings…] from the main menu. 2.Select the Time periods tab from the properties window. 3.Specify 9:00 for the property “Day demarcation time”.