2180s

Millennium:	3rd millennium
Centuries:	21st century – 22nd century – 23rd century
Decades:	2150s 2160s 2170s – 2180s – 2190s 2200s 2210s
Years:	2180 2181 2182 2183 2184 2185 2186 2187 2188 2189

The 2180s decade will begin on January 1, 2180 and will end on December 31, 2189. It will be the ninth decade of the 22nd century.

Events

• 2185: Triple conjunction Mars–Saturn.
• July 16, 2186: Solar eclipse of 7 min 29 s (very close to the theoretical maximum), saros 139, the longest in the series.
  This is calculated to be the longest eclipse during the current 10,000 year period, from 4000 BC to AD 6000 (eclipse predictions by Fred Espenak, NASA/GSFC.DEPP).
• 2187: Triple conjunction Mars–Saturn.

Predictions

• 2182: With an estimated probability of 0.07%, Apollo asteroid 1999 RQ₃₆ could hit the Earth.

Science Fiction set in 2180s

Literature

• The Cat Who Walks Through Walls by Robert A. Heinlein begins in 2188.
• Moving Mars by Ben Bova occurs during 2171-2184.

Television and Film

• DT Eightron, an anime set on the year 2187.

Video Games

• Mass Effect takes place in the year 2183.
• Mass Effect 2 takes place in the year 2185.
• Starcross takes place in 2186.

Other

• The final scenes of The Timekeeper, a former ride at Disneyland parks, were set in Paris, 2189.