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  2. Earth Hour - Wikipedia

    en.wikipedia.org/wiki/Earth_Hour

    Earth Hour is a worldwide movement organized by the World Wildlife Fund (WWF). The event is held annually, encouraging the individuals, communities, and businesses to give an hour for Earth, and additionally marked by landmarks and businesses switching off non-essential electric lights, for one hour from 8:30 to 9:30 p.m., usually on the last Saturday of March, as a symbol of commitment to the ...

  3. Earth Overshoot Day - Wikipedia

    en.wikipedia.org/wiki/Earth_Overshoot_Day

    Progression of the dates of Earth Overshoot Day [1] Evolution of the Earth Overshoot Day dates in time. Earth Overshoot Day (EOD) is the calculated illustrative calendar date on which humanity's resource consumption for the year exceeds Earth’s capacity to regenerate those resources that year. In 2024, it fell on 1 August. [2]

  4. List of environmental dates - Wikipedia

    en.wikipedia.org/wiki/List_of_environmental_dates

    Earth Hour – 8:30 pm ... Variable date (next one- 22 May 2022; last one- 24 October 2020)Ayush: ... This page was last edited on 10 December 2024, ...

  5. ΔT (timekeeping) - Wikipedia

    en.wikipedia.org/wiki/ΔT_(timekeeping)

    TT-UT1 2000+ ΔT vs. time from 1657 to 2022 [1] [2] In precise timekeeping, ΔT (Delta T, delta-T, deltaT, or DT) is a measure of the cumulative effect of the departure of the Earth's rotation period from the fixed-length day of International Atomic Time (86,400 seconds).

  6. Astronomy Day - Wikipedia

    en.wikipedia.org/wiki/Astronomy_Day

    Date(s) Saturday between mid ... 2024 Spring May 18 May 15 Autumn October 12 October 10 2025: Spring: ... Earth Hour; Earth Day/Earth Week; Earth Week; 100 Hours of ...

  7. Cosmic Calendar - Wikipedia

    en.wikipedia.org/wiki/Cosmic_Calendar

    A similar analogy used to visualize the geologic time scale and the history of life on Earth is the Geologic Calendar. A graphical view of the Cosmic Calendar, featuring the months of the year, days of December, the final minute, and the final second

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. International Earth Rotation and Reference Systems Service

    en.wikipedia.org/wiki/International_Earth...

    The Sub-bureau for Rapid Service and Predictions of Earth Orientation Parameters of the IERS, located at the United States Naval Observatory, monitors the Earth's rotation. Part of its mission involves the determination of a time scale based on the current rate of the rotation of the Earth. Other services of IERS are at the Paris Observatory.