How to change and check if system is in day or night service Posted on December 19, 2013March 19, 2020 by Paul How to change and chk if in day or night service In Maintenance Commands type CP Service Day/ Night1 / Night2 / Display 0 / 5. 0 Share this:Click to email a link to a friend (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Like this:Like Loading...