I'm one of those rare people who actually likes turning the clocks back in the fall. Sure, it means that it gets dark earlier, but I'm an early riser and like seeing the sun in the morning. This weekend we're changing our clocks and if you are too, your students might have some questions about why we change the clocks in the fall and spring.
The following videos offer concise explanations of Daylight Saving Time.
Although it's not about daylight saving time, this TED-Ed lesson about the standardization of timezones is worth watching.