1. Collect this periodically during peak and off - peak hours 2. No service in weekdays off - peak hours 3. You might want to schedule data backups to occur during off - peak hours 4. You could trigger multiple updates using xmlaccess during off - peak hours 5. Views on restraining goods vehicle movements to off - peak hours varied 6. Off - peak hours 7. We recommend that you configure database mirroring during off - peak hours because configuration can impact performance 8. We recommend that you configure database mirroring during off - peak hours because configuration can affect performance 9. You can try to refresh this page in a few minutes , or try downloading internet explorer during off - peak hours . < br > 10. Therefore , a scavenging application runs best in off - peak hours and interferes as little as possible with local control