Like I do practically every time Daylight Saving Time starts or ends, I have congregated a handful of brief video descriptions about why we have Daylight Saving Time. Take an appearance and see if there is one that can help you explain Daylight Saving Time to your trainees..
National Geographic has 2 videos titled Daylight Saving Time 101. The very first one, published in 2015, is a bit more positive than the 2nd one that was released in 2019. Both versions are embedded listed below..

Daylight Saving Time ends today for a number of my good friends in Europe and it ends next Sunday for those of us in North American states and provinces that observe Daylight Saving Time. As somebody who gets up early and resides in a northern state, I invite the modification as Ill see the sun an hour previously. And ideally, my kids will make the most of the “extra” hour of time for sleeping next Saturday night.

TED-Ed has two lessons that arent particularly about Daylight Saving Time however are related to the subject. The History of Keeping Time discusses sundials, hourglasses, and the development of timezones.

The Telegraph has a 90 second explanation of Daylight Saving Time. The video does not have any narration so it can be seen without sound.

If it isnt as succinct as the videos above, CGP Greys video explanation of Daylight Saving Time is still an excellent one even.