User:Lordseriouspig/Drafts/Blue Switch Day

Blue Switch Day
A graph showing the accuracy of GPS on the day Selective Availability was turned off
Observed byGeocachers
TypeGroup
CelebrationsGeocaching to earn an in-app souvenir
ObservancesCelebrates anniversary of the day Selective Availability was turned off.
Date2 May
Next time2 May 2025 (2025-05-02)
FrequencyAnnual

Blue Switch Day is a holiday celebrated by Geocachers that marks the anniversary of the day that Selective Availability was turned off, and the Global Positioning System was made available to the general public.[1] The day is celebrated on May 2 annually. Prior to May 2 2000, GPS had limited accuracy to non-government personal, making activities like Geocaching impossible.[2]

  1. ^ Baughman, Dana (8 April 2024). "New souvenir: Blue Switch Day 2024! – Official Blog". Geocaching Blog. Retrieved 3 August 2024.
  2. ^ "Geocaching | Definition, History, & Facts | Britannica". www.britannica.com. Retrieved 3 August 2024.