The Telegraph has a 90 second description of Daylight Saving Time. The video doesnt have any narration so it can be seen without noise.

Daylight Saving Time ends today for many of my friends in Europe and it ends next Sunday for those of us in North American states and provinces that observe Daylight Saving Time. As someone who gets up early and resides in a northern state, I welcome the change as Ill see the sun an hour previously. And hopefully, my kids will benefit from the “extra” hour of time for sleeping next Saturday night.

TED-Ed has 2 lessons that arent specifically about Daylight Saving Time however are related to the topic. The History of Keeping Time describes sundials, hourglasses, and the development of timezones.

If it isnt as concise as the videos above, CGP Greys video explanation of Daylight Saving Time is still a great one even.

Like I do almost whenever Daylight Saving Time ends or begins, I have gathered together a handful of brief video descriptions about why we have Daylight Saving Time. See and take a look if there is one that can help you explain Daylight Saving Time to your trainees..
National Geographic has two videos entitled Daylight Saving Time 101. The first one, released in 2015, is a bit more upbeat than the second one that was released in 2019. Both variations are embedded below..