Over the course of December at Ninoy Aquino Manila International Airport, the length of the day is essentially constant. The shortest day of the month is December 22, with 11 hours, 16 minutes of daylight and the longest day is December 1, with 11 hours, 20 minutes of daylight.
Definition of nuclear for English Language Learners. : 1  of, relating to, producing, or using energy that is created when the nuclei of atoms are split apart or joined together. : 2  having or involving nuclear weapons. : 3  of or relating to the nucleus of an atom.
Definition of nucleus for English Language Learners. 1  biology : the central part of most cells that contains genetic material and is enclosed in a membrane. 2  physics : the central part of an atom that is made up of protons and neutrons. : 3  a central or most important part of something.