![]() High tides occur 12 hours and 25 minutes apart. So, it takes the Earth an extra 50 minutes to “catch up” to the moon.īecause the Earth rotates through two tidal “bulges” every lunar day, coastal areas experience two high and two low tides every 24 hours and 50 minutes. The lunar day is 50 minutes longer than a solar day because the moon revolves around the Earth in the same direction that the Earth rotates around its axis. Unlike a solar day, however, a lunar day is 24 hours and 50 minutes. ![]() Similarly, a lunar day (also known as a "tidal day") is the time it takes for a specific site on the Earth to rotate from an exact point under the moon to the same point under the moon. Almost everyone is familiar with the concept of a 24-hour solar day, which is the time that it takes for a specific site on the Earth to rotate from an exact point under the sun to the same point under the sun. Most coastal areas, with some exceptions, experience two high tides and two low tides every day. ![]()
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