Potty training a puppy at night. Puppies vary in how long they can last at night without a wee. Many pups are nine or ten weeks old before they can last all night (say around midnight until 6 or 7 am) without a wee. Some pups are even older and a few pups can last six or seven hours from around eight weeks old.
In most places, two high tides and two low tides occur daily. Tides happen because the moon's gravity is pulling on the Earth and its oceans. The oceans are fluid and can move more than the land, so they move towards the moon.
Three basic tidal patterns occur along the Earths major shorelines. In general, most areas have two high tides and two low tides each day. When the two highs and the two lows are about the same height, the pattern is called a semi-. This map shows the geographic distribution of different tidal cycles.