Lights off during lunch hour at YTL PowerSeraya HarbourFront office (Earth Hour 2020)Lights off during lunch hour at the security guardhouse of YTL PowerSeraya Pulau Seraya Power Station (Earth Hour 2020)Lights on/lights off at YTL Communications NOC, Sentul (Earth Hour 2020)Lights on/lights off at Wisma Atria (Earth Hour 2020)
