Category: Department Memorandum CircularsSub Category: holidays-activities-celebrationSeries: 2018No: 16File: DMC_016_s2018.pdfDate: Friday, March 2, 2018Tags: World Wide Fund for Nature (WWF)Earth Hour PilipinasInvitation to be Part of WWF's Earth Hour 2018 Campaign2018 from 8:30 PM - 9:30 PM.activities 016