I have the same problem with my Reminders. I don't really want to have to change all 38 of them manually (and then have to change them again in March???). I have three Apple devices and all three have the problem (on a related note, all my Reminders are visible in iCloud too, but there the times are all in UTC/GMT). Per another post, I confirmed Settings/General/Date & Time is set to "Automatically". I rebooted all three of my devices. I confirmed that all three devices were set to sync Reminders via iCloud, then unselected Reminders from iCloud, rebooted all three devices, and reselected Reminders in the iCloud settings. Problem still there. And I'm sure this worked okay for the last several time changes.