Hi @Rikds, the reason is that we are reporting also the small drop downs, otherwise the differences are just a few mins/cms, which does not play a significant role. If you check e.g. this graph, our information is practically the same: https://www.tide-forecast.com/locations/Bournemouth-England/tides/latest
Of course, if you ever find an error (differences in hours and tens of cm), please do let us know.
Thank you ~ Marie