The Middle Primary Class at ISOCS is looking at measurement of time. Here's a video to help you understand Daylight Saving Time, or, perhaps, to confuse you a little more! Switzerland went back to Standard Time a week ago.
Published on by CGPGrey
If you want to read more about Daylight Saving Time, check out this web page. The Wikipedia article is here.
If you want to be a little more confused, or perhaps not so confused, read about how the ancient Romans kept track of time on this web page. This page has lots and lots of links to other pages about measuring time (It's an older web page, but most of the links still work).
Thanks (once again) to Richard Byrne for the link to the YouTube video.