Editing Day-night cycle (estimations)

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[[File:Day-night cycle example.png|thumb|right|An example of a day-night cycle for [https://en.wikipedia.org/wiki/PewDiePie PewDiePie], as seen on [[MinMax]]'s stream.]]
[[File:Day-night cycle example two.png|thumb|Another example of a day-night cycle for [https://en.wikipedia.org/wiki/T-Series T-Series], as seen on Nia Stats' stream. T-Series is seen slowly losing subscribers at night.]]

A '''day-night cycle''' in estimation systems is a system where the rate at which a YouTube channel grows slows down or speeds up depending on the current time.