Its core features include:
The is one of the most traditional and revered Hindu almanacs used extensively in South India, particularly in Tamil Nadu, by followers of the Vaikhanasa and Smarta traditions. Unlike the modern "Drik Ganitha" (calculated based on visible positions of planets), the Vakya Panchangam is based on ancient Vakyas (sentences/declarations) derived from the Surya Siddhanta . Vakya Panchangam 1998