Prayagraj, Uttar Pradesh, India keeps Asia/Kolkata time. Every Vedic daily timing here, the Panchang, Rahu Kaal, Choghadiya and Muhurat, is built from Prayagraj's own sunrise and sunset, not a single all-India (IST) table, so it is specific to Prayagraj and shifts a little each day. Even within India, Prayagraj's sunrise is not identical to Delhi's, so the daily windows shift accordingly. The live panel on each page is recalculated daily for Prayagraj.
The live panel shows today's tithi, nakshatra, yoga, karana and vaara for Prayagraj, updated daily.
The Panchang depends on local sunrise, and Prayagraj's sunrise differs, so its tithi/nakshatra timings are specific to Prayagraj.
Astronomically precise Rahu Kaal timings for 25 major Indian cities.