The full daily Panchang for New York: today's tithi, nakshatra, yoga, karana and vara, with sunrise, sunset, Rahu Kaal and Choghadiya in your local time.
The five limbs — tithi, nakshatra, yoga, karana and vara — change at moments fixed by the Moon and Sun, not by the clock, so a tithi can begin mid-afternoon in New York and be reported on a different date by a panchang computed elsewhere. This page resolves all five against New York's local sunrise, which is the reference Vedic tradition uses to name the day.
New York runs on America/New_York, not IST, so an Indian panchang does not transfer here directly. At 74.01°W the Sun peaks about 4 minutes earlier than the standard-time clock reads. Every timing on this page is computed from New York's own sunrise and sunset.
New York sits at 40.71°N. Daylight here runs to about 14h 55m at its longest and about 9h 05m at its shortest — a swing of roughly 5h 51m across the year. Because the eight daytime Choghadiya periods are made by dividing sunrise-to-sunset into eight equal parts, each period in New York is noticeably longer in summer than in winter. Rahu Kaal, being one-eighth of the day, moves the same way.
Timings are computed for 40.71°N, 74.01°W (America/New_York) with the Swiss Ephemeris: the day's exact sunrise and sunset first, then Rahu Kaal, the Choghadiya periods and the panchang limbs derived from them. Nothing is approximated from a nearby larger city.
No. New York is on America/New_York while an Indian panchang publishes everything in IST, so the timings have to be recomputed against local sunrise here.
Because it is not a fixed clock time — it is one-eighth of the daylight span, measured from that morning's sunrise. Daylight in New York varies by about 5h 51m across the year, so both the start time and the length of Rahu Kaal move with it.
No. Rahu Kaal, Choghadiya and the panchang are properties of place and date — identical for everyone in New York on a given day. A muhurat chosen against your own chart is a separate question and needs your birth details.