The length of the day at Denver International Airport varies significantly over the course of the year. In 2017, the shortest day is December 21, with 9 hours, 21 minutes of daylight; the longest day is June 21, with 15 hours, 0 minutes of daylight.
(April 2014) A continuing education unit (CEU) or continuing education credit (CEC) is a measure used in continuing education programs to assist the professional to maintain his or her license in their profession.
Even massage therapists and bodyworkers who have been in practice for many years are sometimes confused by the terms continuing education unit, contact hour, CE hour, CE credits or CEU. The confusion is understandable as many providers, some states and marketing materials tend to use the terms interchangeably.