It's not only about reducing the number of new infections, it's also about reducing the severity of infections.
If the total number of people still get infected by you transmitting half as many particles, they each only took in half as many particles. Their bodies have a greater chance of killing that lesser number of viruses before a serious reactions occurs compared to the greater number. So, even if the same number of people were to get sick, theyd get less sick. This is extra important for those who are immunocompromised because it will more easily mean the difference between pretty severe and hospitalized than for someone who is not immunocompromised (for whom the difference would be medium to minor)
And
Indiana has stopped that thankfully. Several counties near Chicago (northwest IN) and near Evansville (southwest IN) are on central time and the rest of the state is eastern time, but everyone changes for daylight saving time now.