Dahua DH-XVR5104HS-4KL-I3 User Manual page 298

 There are six periods for you to set for each day.
 Under Copy, select All to apply the settings to all the days of a week, or select specific
3) Click OK to save the settings.
Click OK.
5.16.1.2 Modify a User Account
Select Main Menu > ACCOUNT > User.
Click
day(s) that you want to apply the settings to.
for the user account that you want to modify.
User
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User's Manual