People who wish to do their bit for the environment by participating in Earth Hour should prepare well and also encourage their friends to participate in the campaign. Dubai Municipality urged people to switch off electricity for one hour between 8.30pm and 9.30pm . Here are some tips to make your contribution more effective: Make sure you have bought candles. Prepare food early in the day to ensure appliances are turned off during Earth Hour. Remember to switch off all unnecessary lights, computers and stand-by buttons on the TV. Please keep safety in mind at all times, and make sure that children and the elderly are appropriately supervised. Pass on the message to your friends. Notify them on Facebook prior to the event that you will be offline during that hour. If participating in Earth Hour at Burj Plaza, please arrive early. Last year, the event attracted over 6,000 people. Remember to make your conservation pledge and implement at least one act of conservation every day.