đDemo :
Dynamic hours/tides display for "Lacanau-Océan".
đData settings :
1. Find the date and time of the closest new moon to earth during the year on http://www.fourmilab.ch/earthview/pacalc.html or http://www.astrosurf.com/grandourse/phaselun.pdf
=> 30/08/2019 10:38 TU
2. For a given spot, take the date and time of the next high tide on https://marine.meteoconsult.fr/meteo-marine/horaires-maree-lacanau-1051-4.php
=> 30/08/2019 15:55 TU for "Lacanau-Océan".
Tide graph images pattern :
