Times, heights over 800 ports in the world.
The list is given to http://christian-guine.fr:8082/TideWorld.html

Application made from the harmonic constants provided by BODC or calculated from water level histories

All displayed local time, are in the summer and winter hours.

No use of geolocation data outside the application and only to locate the nearest port.

The menu is used to calculate the tides and to give specifics on a day or month.

Choose your own threshold (minimum height for sailing or fishing for maximum distance).

Enter a head of water and set schedules for which it will be reached or for such time before any water depth.

Thank you to share your comments to further improve the application.