Finding Historical Sunset Times: New York City, March 19, 2011

While I cannot retrieve real-time astronomical data for specific past dates, determining the exact sunset time for New York City on March 19, 2011 is entirely possible with the right tools.

Sunset times vary daily based on a location's latitude, longitude, and the Earth's orbital position. For New York City (approximately 40.7° N, 74.0° W), mid-March sunsets typically occur between 6:55 PM and 7:10 PM Eastern Daylight Time, as the vernal equinox approaches.

Reliable Sources for Historical Astronomical Data

• NOAA Solar Calculator - The National Oceanic and Atmospheric Administration provides a free online tool for calculating sunrise/sunset times for any date and location
• TimeandDate.com - Offers historical weather and astronomical data for major cities worldwide
• U.S. Naval Observatory - The authoritative source for astronomical data in the United States
• Almanacs - Traditional publications like the Old Farmer's Almanac include historical astronomical tables

For the most precise answer, I recommend using the NOAA Solar Calculator with the specific coordinates and date. These tools account for atmospheric refraction, elevation, and the equation of time to provide accuracy within seconds.