Samay is a term used to loosely categorize ragas into times of days.

Ragas are divided into prahaars whereby each raga has a specific period of the day when it is performed.

In Gandharva-Veda the day is divided into three-hour-long intervals: 4-7 a.m., 7-10 a.m. etc. The time concept in Ghandarva-Veda is more strictly adhered to than it would be, for example, in carnatic music.