Daylight saving time (DST)?🤔

As an international student, this is my first time hearing of it. I already did my research on Google about it, but still, there are some doubts and confusion regarding DST.

So from what I understand, if I have a class that starts at 8 a.m., will it be at 7 a.m. during DST?

And if there are any additional things that I should know, please let me know. Thank you in advance!