Clues for Spring 2018

Photoperiod

Time Continent, Country, City
Estimate latitude by using sunrise/sunset data to calculate photoperiod.
Mystery Class Data
Your Local Data

 

 

Use Time Clues to estimate longitude:

  • March 9
Contest
  • Submit Your Answer

Narrow the search from continent to country to city.

Clues by Date
  • March 16 (continent/reg.)
  • March 23 (country)
  • March 30 (state/province)
  • April 6 (city/town)
Clues by Mystery Class
  • Mystery Class #1
  • Mystery Class #2
  • Mystery Class #3
  • Mystery Class #4
  • Mystery Class #5
  • Mystery Class #6
  • Mystery Class #7
  • Mystery Class #8
  • Mystery Class #9
  • Mystery Class #10