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DST policies vary by country and (US) state. The US DST schedule can be changed, and has been — twice in the last 50 years. There are proposals to do so again,
by AdamH12113 3y ago
DST policies vary by country and (US) state. The US DST schedule can be changed, and has been — twice in the last 50 years. There are proposals to do so again, both nationally and within states. Implementing automatic DST adjustment puts you on the hook for software updates forever. It’s much easier to just let people change the time manually when they need to, like they do with other appliances.
IMHO, the real failure is when devices make it hard to figure out how to change the time.
- notatoad 3y agoyeah, DST schedules change frequently enough that within the lifetime of most automobiles, at least some of them will be in use in some location where up-to-date timezone database doesn't match the timezone database in the car's software. so the manufacturer gets to choose between making people apply DST changes manually twice a year, which most people understand and are used to doing for various things, or changing over for DST automatically but being wrong sometimes, which most people won't understand and will complain about.
- SAI_Peregrinus 3y agoCars also move. Sometimes they move across time zones or DST boundaries. Automatic local time requires GNSS and a DST database.