129 days from May 11, 1980

would be

September 17, 1980 (Wednesday)

Time Zone: America/New_York (GMT-05:00)

• Day numbers: 261

• Week number: 38

• Leap year: 1980 is a leap year.

• Daylight Saving Time: Yes

Sunrise, Sunset Times for September 17, 1980 (Wednesday)

• Sunrise time: 07:16 am

• Sunset time: 07:39 pm

• Day length: 12h 23m

• Source: suntoday.org

Moon Phase for September 17, 1980 (Wednesday)

• Moon Phase: Waxing Gibbous

• Illumination: 53%

• Moon Age: 7.75 day(s)

• Source: mooninfo.org

September 17, 1980 Holidays and National Days

September 17 in History

2011
Occupy Wall Street movement calling for greater social and economic equality begins in New York City’s Zuccotti Park, coining the phrase “We are the 99%.”
2006
Alaska’s Fourpeaked Mountain erupts for the first time in at least 10,000 years.
2001
The New York Stock Exchange reopens for the first time since the September 11 terrorist attacks on the Twin Towers; longest period of closure since the Great Depression of the 1930s.
1983
Vanessa Williams becomes the first black Miss America; relinquished crown early after scandal over nude photos.
1980
Nationwide independent trade union Solidarity established in Poland.
1978
Egypt and Israel sign the Camp David Accords.
1976
The Space Shuttle is unveiled to the public.
1962
The first federal suit to end public school segregation is filed by the U.S. Justice Department.
1959
The X-15 rocket plane makes its first flight.
1957
The Thai army seizes power in Bangkok.