If we use the approach of having the workday end at 5 PM during one half of the year, and 6 PM in the other half, people have to ask themselves "Are we in the 5 PM half, or the 6 PM half?" This confusion will probably last for a few weeks, similar to the confusion when a year changes (I write the old year for at least a month).
On the hand, changing the clocks is a one time change, and then you don't need to constantly check which half you're in.
Also I know Colorado is mountain and it's always either -6 or -7 but on any given day I have to look up which it is. It's not a reflection of my intelligence.
Then the 9-5 work day. Tradefolks often start much earlier. People working late shifts at restaurants and other service industries are very unlikely to do simple 9-5. People in tech are all over the place. "Early bird gets the worm" because if you're not at the default or earlier, you're basically fucked: hope you didn't need to sleep 7+ hours after that night shift, because you certainly aren't going to when the neighbors let the dog out to bark!
In Boston the latest sunrise is at 7:15am on Jan 2nd. However, the earliest sunset is at 4:11pm on December 6th.
If it were 8:15am to 5:11pm at the worst on either end, I know I at least would be less irritable.
It certainly would also benefit our and other IT support staff as it never ceases to amaze me how many modern day applications trip up when the time changes
That roughly corresponds to San Fransisco on the west coast and Richmond, VA on the east coast. So, the impact will probably be minimal for many people.
In fact, in January, the sun rises here at 7:40 AM Standard Time. Which would be 8:40 AM Daylight Time.
It would be terrible to have to wake up an hour before sunrise.
(I lived in Indiana at the time they switched to observing DST, but I was on team central time zone)
We're going to spring forward and, where I live, it'll be daytime until 10pm. It'd be nice if Indiana just went ahead and committed to CST. I can't imagine what it's like living on the upper peninsula of Michigan and still being EST.
Assume that your average adult works 9-5, and your average school child is in school 8-3. Broad strokes, these are the two groups to focus on. I know most adults commute earlier than 9, and most students are up earlier than 8, but it's safe to say that most Americans are up-and-at-'em from 8-5.
On the shortest day of the year in Boston, sunrise is at 7:10am and sunset is at 4:14PM. Including civil twilight ("it's still kind of daytime") extends it to 6:38am to 4:46PM.
Even on the shortest day of the year, if you wake up even before 7 you're waking up in daylight. But, sunset is super early. Every working adult is commuting home in actual nighttime.
Shift that forward 1 hour, and it gets light at 7:30AM and gets dark at 5:45PM. While slightly darker for students in the morning, it's immensely better for working adults, who at least get some daylight in the evenings, and not actual nighttime before 5PM.