• Time Zone: GMT-05:00
• Time Zone ID: America/New_York
• Day numbers: 260
• Week number: 38
• Leap year: 2025 is not a leap year
• Daylight Saving Time: Yes
Sunrise, Sunset Times for Sep 17th 2025
• Sunrise time: 07:15 am
• Sunset time: 07:40 pm
• Day length: 12h 25m
• Source: suntoday.org
Moon Phase for Sep 17th 2025
• Moon Phase: Waning Crescent
• Illumination: 15%
• Moon Age: 25.78 day(s)
• Source: mooninfo.org
Holidays and National Days for September 17th 2025
September 17 in History
1787
The Constitutional Convention in Philadelphia approves the constitution for the United States of America.
1796
President George Washington delivers his “Farewell Address” to Congress before concluding his second term in office.
1862
The Battle of Antietam in Maryland, the bloodiest day in U.S. history, commences. Fighting in the corn field, Bloody Lane and Burnside’s Bridge rages all day as the Union and Confederate armies suffer a combined 26,293 casualties.
1868
The Battle of Beecher’s Island begins, in which Major George “Sandy” Forsyth and 50 volunteers hold off 500 Sioux and Cheyenne in eastern Colorado.
1902
U.S. troops are sent to Panama to keep train lines open over the isthmus as Panamanian nationals struggle for independence from Colombia.
→ See more: September 17 in History
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