Is There a Difference Between Standard Time and Daylight Saving Time?

We're talking with doctor aaron flin evans about springing ahead this week end and why daylight saving time is bad for our bodies. In 19 74, the us. Adopted a permanent switch to daylight saving time. It didn't even last a year, and then it was repealed. So we really don't want to make the same mistake and move toward permanent daylight Saving Time.