Do tide clocks really work?
John Hall
Updated on May 07, 2026
Do tide clocks really work?
Properly set, our tide clocks are quite accurate almost anywhere in the world. However, the effects of the sun, as well as local weather conditions can cause the tides to vary, sometimes by as much as 1 1/2 hours during the course of the month.
When should I set my tide clock?
To set your Tidal Clock As a general rule, it is best to set the tide hand at high tide during a full or new moon. If this is not possible, we suggest you check the reading of the tide hand at the next full or new moon. If, at that time, the tide hand is not indicating to high tide, adjust it with the wheel.
Where do tide clocks work?
By principle, a tide clock works everywhere ! Indeed, a simple battery is necessary to make it work. However, the clock is not adapted to all oceans and seas over the Earth. This clock shows tide times for places where tides are regular.
Why is my tide clock not working?
CLOCK MOVEMENT IS NOT RUNNING OR NOT RUNNING CORRECTLY: Be sure the metal tabs are making good contact with the battery. b. Check the hands to make sure they are not touching each other or touching the dial, lens, or glass. This can make the hand be low on one side of the dial and high on the other side.
Why do tide clocks not work in the Gulf of Mexico?
No, unfortunately there is no tide clock that works in the Gulf of Mexico. The tide clocks available specifically work with the Atlantic Ocean, which is a small in terms of oceans. They don’t even work in the Pacific Ocean, as the Pacific Ocean is too large and the waves and currents are very sporatic.
What are the 4 types of tides?
The Four Different Types of Tides
- Diurnal Tide. ••• A diurnal tide has one episode of high water and one episode of low water each day.
- Semi-diurnal Tide. ••• A semi-diurnal tide has two episodes of equal high water and two episodes of low equal water each day.
- Mixed Tide. •••
- Meteorological Tide. •••
How often do you set a tide clock?
To set your Tidal Clock 2. The tide indicator hand should be set to high tide when the next high tide in your area occurs. As a general rule, it is best to set the tide hand at high tide during a full or new moon. If this is not possible, we suggest you check the reading of the tide hand at the next full or new moon.
What does a tide clock look like?
Although a tide clock looks pretty much like a typical clock, if you look at it more closely, you will notice its specific features. At the top and bottom of the clock face, numbers are replaced by the following inscriptions : “High tide” and “Low tide”.
Who invented the tide clock?
tideclock’s 40-year voyage. Our founders Louis Schelling and Andrew Marvel developed the first tide clock in 1971.
Do tide clocks work in Hawaii?
Tide clocks operate effectively when used in Semidiurnal tidal areas (red). Although the US and Canadian Pacific Coasts and Hawaii have mixed semidiurnal tides, our Tide Timers will operate effectively along the Pacific if they’re used with Schelling Corporation’s proprietary West Coast setting tables.
How does a tide clock work?
Tide clock. A tide clock is a specially designed clock that keeps track of the Moon’s apparent motion around the Earth. Along many coastlines, the Moon contributes the major part (67%) of the combined lunar and solar tides.
How many hours between high tide and low tide?
High tides are 12 hours and 25 minutes apart and are separated by a low tide. So low tide must come 6 hours and 12.5 minutes after one high tide and before the next.
Our tide clocks work best on the Atlantic seaboard . The Moon is the main factor in pulling the tides with its gravitational pull and the lunar day is 24 hours and 50 minutes. It is 50 minutes longer than our calendar day so we see two high and two low tides every 24 hours and 50 minutes.
What is a tidal clock?
A tide clock is a clock that indicates the times of the next high and low tides by keeping track of the moon’s motion around the earth. Tide clocks use a tide dial and solar time dial, which are rotated at different rates by a timepiece.