Daylight saving time (DST) A Few Interesting Facts and Myths About Daylight Saving Time 1. Terminology: Daylight saving time, not “savings”. 2. Bottling daylight most of the year. In the United States, we spend about 65% of the year (~238 days) in daylight saving time. 3. Two states do not observe DST: Hawaii and Arizona, … Continue reading 100 years later, daylight saving time (DST) is still a thing