How does Daylight Savings Time affect us?

Coming this Sunday, you have to set your clock one hour back again!

Photo by Lukas Blazek on Unsplash

The controversial policy of daylight saving is one of the most widespread in the world, “used by 77 countries and regions with a combined population in excess of 1.5 billion”1. The biggest argument in favor of this policy was the impact on electricity consumption. But have you ever wondered how changing the time abrupt affects us,  both mentally and physically?

Comment if you agree or disagree with daylight savings.

Browse through a few articles related to the impact of daylight savings in our lives below:

Traffic safety:

Legal Sentences:

Physiological and psychological effects:

Physical activity:

  • Zick, C. D. (2014). Does Daylight Savings Time Encourage Physical ActivityJournal of Physical Activity & Health11(5), 1057–1060.
  • Sexton, A. L., & Beatty, T. K. M. (2014). Behavioral responses to daylight savings time.Journal of Economic Behavior and Organization, 107, 290-307.

If you are interested in knowing if Daylight Savings Time actually saves electricity, this meta-analysis can give you the answer:

1 Havranek, Herman, & Irsova, 2018, p. 35.

Contributed by Juliana Terciotti Magro, Main Campus Librarian.

3 thoughts on “How does Daylight Savings Time affect us?

  1. Michoel Rotenfeld November 2, 2018 / 11:48 am

    Fascinating. Thank you.

  2. archivistphil November 2, 2018 / 11:49 am

    Love the extra hour of sleep in the fall. Having to use a step ladder to precariously reach for the clocks high up on the walls twice a year, not so much…

  3. David B Levy November 5, 2018 / 5:09 pm

    In Jewish law the concept of Bal Tashchit applies to understanding that G-d’s resources are not ours to abuse. Adam and Eve were instructed to tend to, safeguard, and preserve their environment in Gan Eden. Thus environmental and ecological ethics apply to the concept of wasting electricity. We are not put in the planet to deplete abuse and treat casually the environment and its resources. The Jewish tradition widely forbids wasteful acts, how wasting contributes to degradation of the planet, and how not wasting can help us improve our lives both physically and spiritually. For example in my will I leave my remaining finances (if any will be left over) to an organization called Leket Israel. This organization gathers in refrigerated trucks food from simchot (parties) that may be otherwise thrown away and gives it to people in need and starving without enough food to eat. It is an offence of ingratitude to G-d to waste resources including food to electricity to wasting air conditioning and heat, to abuse of the ozone by cell phones to toxic dumping to acid rain etc. Recycling is one way to resist the detrimental effect of harming our environment. The purpose is living a life turned towards caring for the environment (sorge) rather than benutzin (using the environment). This relates to a metaphysical understanding of time itself that we are to live harmoniously in time rather than to “use” “barter” “comadadize” time or what in Greek is called chronos Diatrieben (spending time) (see essay Time and Process in Judaism at: Jewish law devotes much time to dividing time in which the jew is enjoyned to poetically and harmoniously dwel by davoning 3 times a day and observing Shabbos and Festivals. Indeed much discussion is given to time at the very opening of the Talmud “From what time may one recite the shema In the evening? From the time that the priests enter their houses to eat their terumah, until the end of the first watch. These are the words of Rabbi Eliezer but the sages say until midnight. R. Gamaliel says unt the sparkling of the dawn (Barkai, ayelet hashachar), when one can tell blue threads of zitzit from white threads etc… The proof text is Genesis where it says “there was evening and then there was morning…. and “when you lie down and when you rise up”… The gematria of Shabat (702) is the reverse image of light (207) and the world cannot enter into redemption according to Rav Kook (see ) until we can make the light of G-d into a perpetual continuous onstanding reality of which environmental ethics plays a part. To understanding the purpose for which time ultimately is destined teleologically my essay on the mystical basis (shemitah ha-olamot) relating to Shemitah (letting the land remain fallow every 7 years) and Yovel (releasing debts every 50 years) relates In my Jewish ethics library guide where I have a # of essays on the concept of Jewish environmental and ecological ethics at which I hope patrons will enjoy. Those essays include:

    Jewish Environmental Ethics Articles

    Some Books at Touro College Libraries on Environmental Ethics

    Essay by DBL on Jewish environmental Ethics

    Jewish Ecology, Ecological Judaism, Green Zionism, and Vegetarianism

    Jewish ethical Ecology Bibliography (50 pages)
    Bibliography organized by Ecology in Jewish law, ecology in Bible, Ecology in Rabbinic lit, Ecology in Arts (Literature and fine arts), Ecology in Israel (Eilat, Haifa, Galilee, Karmel, Negev, etc), Religious Aspects etc
    Agricultural and Mystical Basis of Shemitah and Yovel

    With those sources we hope the reader will find this a complex and most important topic ultimately a part of the process of redemption (geulah) in making a tikkun (repair) turning the world back towards its Edenic Beginning.

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