This widget provides a forecast of marine tides for over 3500 locations worldwide, is completely standalone and does not require any WIFI/Bluetooth connection nor subscriptions to any third party service. It computes the tide forecast real time using harmonics constituents from periodic motions of the Earth, Sun, and Moon for any date in the past or the future (see restriction below) based on the GESLA-4 tide dataset. This version superseeds the prior Tide widget now called Tide Legacy that was based on the older GESLA-3 tide dataset. Some older devices have been discontinued to allow adding support for newer devices. Some key features: - Contribution of the moon and sun to the tide are separated out in addition to the actual forecasted tide level - the tide values are provided with respect to the mean sea level by default but the datum can be changed. - the moon phase and elevation as well as sun phase and elevation are provided on the display. - The station location supported can be selected using the map accessed by swiping left or using the menu button. A text-based selection can be used for devices not supporting map or by swiping donw in the map. - Predicted tide have been found to be within a few centimeters of actual tides and prediucted tide from other sources. However, only a few stations have been checked and given the size of the database, there is no guarantee explicit or implied that these predictions can be trusted. Restrictions: - While any date in the past and the future can be computed and accessible by repeatedly requesting the next day or (prior day), there is currently a limitation to January 19, 2038 due to the fact that Garmin devices are susceptible to the Year 2038 bug (time is captured with only 32 bits in Connect IQ). This is unlikely to be a problem short term as one would have to click more than 5000 times to get to the critical date. Similarly the computation will not work for dates in the past prior to January 1st 1970. The widget can be controlled fully by touch or fully with the buttons per the screenshots provided. The map interface features are limited by what is available through Garmin. Use the text selection menu (swipe down in map) for users that are frustrated by the limits of the map interface. Harmonic constituent used for this widget are courtesy of two public sources: - NOAA: https://tidesandcurrents.noaa.gov/about_harmonic_constituents.html - TICON-4: reference Hart-Davis, M., Dettmering, D. and Seitz, F. (2025) TICON-4: TIdal CONstants based on GESLA-4 sea-level records. Available at: https://doi.org/10.17882/109129. DISCLAIMER: PLEASE DO NOT USE THIS WIDGET FOR DECISIONS THAT COULD PUT YOUR HEALTH OR LIFE IN JEOPARDY. THE PREDICTED TIDES HAVE NOT GONE THROUGH ANY QUALITY CONTROL. Feel free to donate to support more features and more free apps/widgets/faces using https://www.paypal.com/donate/?business=T5YMA6TVQXWQ4&no_recurring=0&item_name=Donate+to+support+the+development+of+more+free+Garmin+watches+apps%2C+widget+or+faces.&currency_code=USD

V4.0: first release with TICON-4 dataset. This is the active version of the app. For older devices not supported or for TICON-3 data, use the tide legacy app instead.