| 摘要 |
An improved nautical clock apparatus of this invention is comprised of a clock base, a tide state indicator attached to the base, and an electronic controller attached to the tide state indicator and to the base for operating the tide state indicator to continuously indicate a time between successive like tide states based on a set time interval therebetween of about 12 hours and 25.235 minutes adjusted such that the time is longer than about 12 hours and 25.235 minutes during at least one portion of each lunar month and shorter than about 12 hours and 25.235 minutes during at least one other portion of each lunar month.
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