Prahara - Wikipedia
https://en.wikipedia.org/wiki/Prahara
OverviewTimingDefinitionHistoryIndian classical musicModern etymology and usageThe first prahara is commonly placed at sunrise, although some sources place it at the brahma-muhurta, a period of time before sunrise (around 4.30 am when Venus can be sighted). The concept of prahar originated where the lengths of the day and night were based on actual, observable sunrise and sunset. The four praharas of the day start at sunrise, and the four praharas of the night at sunset. If the location is near the equator, where day and night are the s…
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