For precise daily timings in 1980, consult a scanned copy of Sri Vakya Panchanga 1980 (Tamil), available at major digital archives like the or Tamil Digital Library .
| Feature | Vakya Panchangam 1980 | Drik Panchangam 1980 | |---------|----------------------|----------------------| | | Fixed by Vakyas (discrete) | Continuous calculation | | Tithi shifts | Often 1 day earlier/later | Astronomical conjunction | | Nakshatra ending | Mnemonic-based (rounded) | Precise to seconds | | Example: Jan 26, 1980 | Dasami (10th) till 8 PM | Dasami till 6 PM | | Example: Aug 15, 1980 | Shravana Nakshatra | Shravana/Dhanishtha borderline | Vakya Panchangam 1980