You Lose an Hour of Sleep to Save $4

CGP Grey · 12.6M views · 2011-10-24 · 6:30

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Overview

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.

On Hacker News

HN people link it as the simple go-to explanation of DST and of how irregular time zone rules complicate scheduling.

Recommended by 1 HN people across 1 months · HN mentions 2011–2019

Topics

Ideas & learning (other)Physics & space (other)

What people said

TamDenholm · 2011-11 · Strong recommendation
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: [VIDEO] His blog with other videos is here: [LINK]
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ddebernardy · 2019-03 · Reference
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. [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.
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osteele · 2017-10 · Reference
Most of Arizona doesn’t participate in DST [1]. [1] “Daylight Savings Time explained”, CGP Gray. [VIDEO] . Skip to the 5 minute mark for Arizona.
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Sources

Video by CGP Grey, played through YouTube.

HN Library · Source license

Data and selection notes

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