CGP Grey
1 HN recommender · recommended in 3 months, 2011–2019
6:30 · 13M views · Oct 24, 2011
CGP Grey explains the mess of Daylight Saving Time, including its dubious energy savings and the odd cases like Arizona that opt out. It is a short, simple explainer.
HN people link it as the simple go-to explanation of DST and of how irregular time zone rules complicate scheduling.
3 comments from Hacker News
This guy makes absolutely amazing videos on a number of subjects explaining things in really simple terms. He made one explaining Daylight Savings Time here: this video His blog with other videos is here: [LINK]
Just spitballing, but I take it you don't participate in many multi-TZ meetings. 1. That's a non problem. If you're in meetings 8h/day the last of your worries would be TZ. Plus, such a time zone difference already exists today between e.g. France and the UK, Portugal and Spain, or for that matter within the US and other countries, and even within US states themselves (see AZ). 2. No it doesn't. What's most problematic when setting appointments actually is when daylight savings changes times. During the switch your regularly scheduled meetings may get messed up, times that worked for an entire remote team might no longer work for a week or two, and mishaps on new meeting schedules are all over the place. See e.g. this video to get a sense of how nutty it can get. 3. 4. I'm failing to see how using daylight savings or not makes any difference.
Most of Arizona doesn’t participate in DST [1]. [1] “Daylight Savings Time explained”, CGP Gray. this video . Skip to the 5 minute mark for Arizona.