Explanation
This parameter controls how often the CPM looks for accounts that need to be changed from recently completed Dual control requests. It is set in the Master Policy under the Dual Control section. The value of this parameter determines the frequency of the CPM's verification process for accounts that have been accessed by users who have received confirmation from authorized Safe owners. The CPM will change the password of these accounts according to the value of this parameter. References:
* Dual Control - CyberArk
* Dual control in V10 Interface - docs.cyberark.com
* PAM-DEF CyberArk Defender - PAM Questions and Answers - Marks4sure

Explanation
A Vault Admin may still access a safe outside of the hours that it has been configured to be accessible, as long as he has the Bypass Safe Time Restrictions authorization on the Vault. The Bypass Safe Time Restrictions authorization enables a user to access any safe in the Vault, regardless of the time restrictions that are defined for that safe. This authorization is useful for emergency situations or maintenance tasks that require access to safes outside of the normal working hours. By default, the Vault Admins group has this authorization, as well as other administrative authorizations on the Vault1.
References:
* 1: Vault Member Authorizations

Explanation
It is possible to restrict the time of day, or day of week that a verify process can occur by using the Verify Time Window parameter in the Platform Management page. This parameter allows the administrator to define a time window for each platform, during which the verify process can be performed. The verify process will not run outside of this time window, unless it is manually initiated by the administrator. This feature can help reduce the load on the target systems and the network during peak hours. References:
* [Defender PAM Course], Module 4: Managing Accounts, Lesson 2: Account Verification, Slide 8:
Verify Time Window
* [Defender PAM Documentation], Version 12.3, Administration Guide, Chapter 4: Managing Platforms, Section: Verify Time Window