Not Very Smart Watch

To maintain sleep hygiene, I pretty faithfully arise when my wrist alarm buzzes.  This being clock change, I expected it to adapt as my cell phone does.  However, it links to the cell phone, which I left downstairs on the kitchen table.  The watch buzzed when it said 6:30 just as programmed.  However, it was really 5:30 but I got up anyway and went to the kitchen to begin my day with coffee.  The cell phone had adjusted automatically and the watch then linked, only to go off again in another hour when it read 6:30 a second time.  I can count of the alarm.