A financial services firm is implementing ITSI to monitor a high-frequency trading application. The application's performance is measured by a 'Trade Execution Latency' KPI, which has a predictable pattern of high activity during market hours (9:30 AM - 4:00 PM ET) and low activity otherwise. The operations team wants to avoid false positive alerts during off-hours. Which ITSI feature should be configured to apply different threshold levels based on the time of day?