Vakya Panchangam uses a specific sunrise-to-sunrise tithi calculation and a different mean position for the moon, causing a 24-hour shift during borderline dates.
A: For historical reference, yes. For current daily use, use the current year’s almanac. However, for 1996-specific rites, Vakya is the authoritative source.
One major reason people specifically search for "Vakya Panchangam 1996 Tamil" is because of festival date discrepancies.
For the , the Vakya Panchangam corresponds to two Gregorian years partly: