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>, or move them back? Why change the entire measurement? Because that's the easier method for society en masse to change 2 times per year. E.g. Some businesse
by jasode 8y ago
>, or move them back? Why change the entire measurement?
Because that's the easier method for society en masse to change 2 times per year. E.g. Some businesses have their opening hours painted on glass windows[1] so repainting them to say 8am-4pm instead of 9am-5pm is more complicated.
That's just a single example. I mentioned some others in a previous comment: https://news.ycombinator.com/item?id=11277093 https://news.ycombinator.com/item?id=11277093
[1] https://www.google.com/search?q=store+opening+closing+times+window&tbm=isch https://www.google.com/search?q=store+opening+closing+times+...
- tacostakohashi 8y agoIf they want to have different opening times for different times of the year painted onto their windows, they can achieve that without repainting: 8am-4pm (2nd Sunday in March - 1st Sunday in November) 9am-5pm (1st Sunday in November - 2nd Sunday in March) In fact, many business already use this technique successfully to display different opening hours for different days of the week.
- jasode 8y ago>(2nd Sunday in March - 1st Sunday in November) Adding calendar qualifications like that to the times makes it even more complicated. To use another commenter's example about "valid hours of parking" printed on narrow street signs, there's no space to append long conditional text (like your suggested verbiage) to the times. Also, the DST change date isn't stable. Over the years, the DST date boundaries have changed: from the last week in April -- then to first week in April -- then to March. The DST rules may further be refined to be always or never. Did you look at my link to my previous message? The business hours on the window was only one example of complexity.