Which information in ECE allows administrators to set up working and non-working hours and days...

Business calendars in ECE allow administrators to set up working and non-working hours and days for employees in their department. The business calendar can be used to define holidays, working hours, operating hours, vacation times, and other important time-related information. This allows administrators to ensure that the department is properly staffed at all times and that employees are not working outside of their scheduled hours.

References: [1] https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/enterprise_chat/enterprise_chat_admin_guide/cec_b_enterprise-chat-admin-guide-cec/cec_b_enterprise-chat-admin-guide-cec_chapter_01.html  [2] https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/enterprise_chat/enterprise_chat_admin_guide/cec_b_enterprise-chat-admin-guide-cec/cec_b_