quietTime
The default quiet time for campaigns in the application. Quiet time is a specific time range when messages aren't sent to endpoints, if all the following conditions are met:
The EndpointDemographic.Timezone property of the endpoint is set to a valid value.
The current time in the endpoint's time zone is later than or equal to the time specified by the QuietTime.Start property for the application (or a campaign or journey that has custom quiet time settings).
The current time in the endpoint's time zone is earlier than or equal to the time specified by the QuietTime.End property for the application (or a campaign or journey that has custom quiet time settings).
If any of the preceding conditions isn't met, the endpoint will receive messages from a campaign or journey, even if quiet time is enabled.
To override the default quiet time settings for a specific campaign or journey, use the Campaign resource or the Journey resource to define a custom quiet time for the campaign or journey.