Whoa . . . today's time-change caught me totally unaware, it not appearing on this year's wall-calendar. It didn't help that the clock at my sofa, which gets its time-settings via satellite rather than manual adjustments, has not yet updated itself to reflect the change.
Woke at what I assumed to be a tad earlier than usual this morning. Killed time before getting out of bed (sofa) reading. Finished the book at 0401 sofa-clock-time. Closed it, returning to the Paperwhite's "library" screen. The time there was 0301!
The computer-room clock, also controlled via satellite, agreed with the Paperwhite. As does my computer.
These days I have three time-keeping devices that must be manually adjusted at each time-change; my ancient digital watch, the microwave oven clock, and a bathroom electric-toothbrush wall-display. Two more could be added to the list; a VHS clock and an old dial-clock in the computer room, which hasn't had batteries in it in forever. I ignore them. The sofa satellite-clock will eventually take care of itself.