Tithi today in the USA
The tithi current at local sunrise can place the same lunar day on a different calendar date in the USA and in India. Every row below is computed for that city’s own sunrise; India (Delhi) is on today.
| City | Date | Tithi | Tithi ends | Sunrise |
|---|---|---|---|---|
| New York | Krishna Amavasya | 02:02 (+1 day) EST | 06:34 EST | |
| Chicago | Krishna Amavasya | 01:02 (+1 day) CST | 06:31 CST | |
| Houston | Krishna Amavasya | 01:02 (+1 day) CST | 06:40 CST | |
| San Francisco | Krishna Amavasya | 23:02 PST | 06:42 PST | |
| Los Angeles | Krishna Amavasya | 23:02 PST | 06:19 PST | |
| San Jose | Krishna Amavasya | 23:02 PST | 06:39 PST | |
| New Jersey (Edison) | Krishna Amavasya | 02:02 (+1 day) EST | 06:35 EST | |
| Dallas | Krishna Amavasya | 01:02 (+1 day) CST | 06:51 CST |
All tithi end moments represent the same universal astronomical instant converted to the local civil time zone of each metropolitan area (the abbreviation after each time shows which zone): 10:30 EDT, 09:30 CDT and 07:30 PDT are one and the same moment. The tithi itself is a Moon-versus-Sun elongation event, so it ends everywhere on Earth at the same instant — only the clock label differs.
Sunrise and solar longitude vs Delhi
| Location | Sunrise | Sun Nirayana longitude at sunrise | Tithi at sunrise |
|---|---|---|---|
| Delhi (reference) | 06:38 | 201.4° (Tula) | Krishna Chaturdasi |
| New York | 06:34 | 201.8° (Tula) | Krishna Amavasya |
| Chicago | 06:31 | 201.9° (Tula) | Krishna Amavasya |
| Houston | 06:40 | 201.9° (Tula) | Krishna Amavasya |
| San Francisco | 06:42 | 202.0° (Tula) | Krishna Amavasya |
| Los Angeles | 06:19 | 202.0° (Tula) | Krishna Amavasya |
| San Jose | 06:39 | 202.0° (Tula) | Krishna Amavasya |
| New Jersey (Edison) | 06:35 | 201.8° (Tula) | Krishna Amavasya |
| Dallas | 06:51 | 201.9° (Tula) | Krishna Amavasya |
Why the US and India can disagree on the date
US time zones run far behind Indian Standard Time (UTC+5:30): the East Coast is 9.5 hours behind in summer (10.5 in winter) and the West Coast 12.5 hours behind in summer (13.5 in winter). A tithi that transitions in the evening over India therefore transitions in the early morning — or the previous calendar day — across the United States. Because the Udaya Tithi rule dates each day by the tithi current at sunrise, the American date can land one day earlier than the Indian date, and the two countries sometimes even run a tithi index apart on the same civil day. India does not use daylight saving time, so the gap widens and narrows by an hour twice a year on the US side alone.
Why dates can differ: the tithi is a moving window of about 21–26 hours. When it straddles two sunrises, the Udaya Tithi day shifts with longitude — see why dates differ abroad and the conventions page.
Related
Methodology and reference
All timings on this page are computed astronomically for the respective local coordinates — solar and lunar sidereal positions, the Lahiri (Chitrapaksha) ayanamsa and sunrise-anchored window divisions — and regression-checked against the Government of India publication Rashtriya Panchang (Positional Astronomy Centre, India Meteorological Department, Kolkata). Data verified against the Positional Astronomy Centre, IMD (Government of India) publications on every site update; the computation method is described on the about page.
Frequently asked questions
- Why do Hindu festivals in the US fall a day earlier than in India?
- A tithi that transitions in the Indian evening transitions in the early morning across the United States because US time zones run 9.5 to 13.5 hours behind IST. When the previous tithi is still current at American sunrise, the Udaya Tithi rule places the festival one calendar day earlier than the Indian date.
- How is Udaya Tithi observed in Daylight Saving Time?
- Daylight saving only shifts the clock label, not the Sun: sunrise happens an hour later by the clock, so the sunrise-anchored windows shift with it while their physical duration is unchanged. India does not observe DST, so the India–US offset changes by one hour twice a year.
- Which US cities does the tithi differ from India for today?
- Check the table above: any row whose date does not match the Delhi reference date is a city observing a different tithi day today. Coastal West Coast cities are the most likely to differ because they sit farthest west of IST.