Both my Echo and Dot made the switch over to DST by 9:30am when I queried each for the time this morning. Interestingly, I asked the Echo in my study first, then walked over to my living room and asked the Dot. I had never asked both a question within a minute of each other, so I was somewhat surprised to learn that the Dot has a MUCH easier voice to hear. Both are set at about the same volume. The Echo is more muddled sounding. The Dot is crisp as far as voice sounds. I guess the Echo is designed more for music and the Dot more for asking questions and voice responses. I have noticed in the past that I often have to strain to understand Alexa on my Echo though, so perhaps something is not quite right with her speakers. My iPad Pro actually sounds better playing music at low to mid volume than my Echo, and iPads are not known for good speakers.