| Joined: | Mon Apr 2nd, 2012 |
| Location: | Carthew, Cornwall, United Kingdom |
| Posts: | 6874 |
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The tidal rate of change is not linear.
See here.
https://en.m.wikipedia.org/wiki/Rule_of_twelfths
Therefore you need to maybe change rate to a slower frame for first and last two hours of the time but in the middle 8 hours you need a faster frame to show the change.
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