![]() The usual NERC disclaimer applies to any information given. Check your watch against local tide tables to confirm your setting. If your location in the UK or Ireland is not mentioned, try using the nearest one or average between the two nearest places on either side – however, this is not guaranteed to work. Click on the column headings to sort the values – the default order of the following list is by adjacent locations around the coast. These values should be sufficient information for watches that use the lunitidal interval to indicate high and low waters. Use the values from the table to set the moon/tide mode of your watch. Casio G-Shock G-LIDE Tide Graph Thermometer Moon Phase GAX-100MSB-1A Mens Watch. Interval (hrs) = M 2 phase (degrees) x M 2 period (hrs) / 360 (degrees) The mean lunitidal intervals (mean high water intervals) are calculated using this equation: The interval may be taken from the local time of moon's transit to the local time of high water, or it may be taken from the Greenwich time of the moon's transit to the standard time of high water.Īlso referred to as the mean high water interval, this is the mean value of all the high water intervals throughout at least a lunation of 29 days, and this is what is given below. The high water lunitidal interval (or high water interval) is the time interval between the moon's transit and the next high water. 6 Best Budget - Friendly Surf Watch - NIXON Base Tide Pro A1307-100M. Best Mix of Value and Functionality - Rip Curl Rifles Waterproof Digital Tide Watch. There are two definitions for this interval, which depends on whether adjacent high waters, or the mean of high waters over a lunar month are being considered. Most Durable - Casio G-Shock G-Lide Teal Resin Surf Watch GBX100-2. It comes with 500 pre-programmed tide locations in a graph or detailed display. ![]() The watch showcases a precise tide height graph, next tide time, and a future tide function. Some watches with a moon/tide mode require lunitidal intervals so that they can indicate high and low waters. Rip Curl Next Tide is a new-generation surf timepiece featuring 500 pre-programmed global tide locations. This sets the stage for Casio’s newly updated G-Shock G-Lide watch collection (GBX100 family) whose beautiful new form includes both a new screen and a new operating system that has. Therefore it is necessary to reset them using local tide tables every month or so. That said, the most effective tide chart watches are digital, and if they can be married to relevant data available via the Internet, then all the better. Generally in the UK and Ireland they vary in accuracy between plus or minus 30 minutes over a 30-day period. Most tide clocks work by using a 12 hour 25 minute cycle.
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