Summer is the hottest of the four temperate seasons, falling after spring and before autumn.At or around the summer solstice (about 3 days before Midsummer Day), the earliest sunrise and latest sunset occurs, the days are longest and the nights are shortest, with day length decreasing as the season progresses after the solstice. The date of the beginning of summer varies according to climate ...Dawn (on Earth) is the time that marks the beginning of twilight before sunrise.It is recognized by the appearance of indirect sunlight being scattered in Earths atmosphere, when the centre of the Suns disc has reached 18° below the observers horizon. This morning twilight period will last until sunrise (when the Suns upper limb breaks the horizon), when direct sunlight outshines the ...
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