Realtime. In the backend of the RagaPlayer our Ayurveda Sundial does its job and calculates the 8 periods Because of the solar time it is assured, that a morning raga in fact starts to play at the beginning of the day – since our "normal" time can deviate from factual time immensely: Mornings up to ca. 5 hours; Midday up to ca. 3 hours; Evenings up to ca. 5 hours.