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How many days since Half-Life: Opposing Force was released?

Half-Life: Opposing Force (video game) · Friday, November 19, 1999 · Culture
9,846days since

It has been 9,846 days since Half-Life: Opposing Force was released (Friday, November 19, 1999) — that's 26 years, 11 months and 15 days.

26y 11m 15d
Calendar
1,406w 4d
Weeks
323
Months
236,317
Hours
14,179,058
Minutes
850,743,522
Seconds

In other units

14.33
Mars years
#15 starts Fri, Feb 4, 2028
43.82
Venus years
2.27
Jupiter years
334
full moons
next Tue, Nov 24
1,407
weekends
≈ 992.53 million
heartbeats
at a resting 70 bpm
25.34 billion
km around the Sun
Earth’s ride, at 107,000 km/h

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About

1999 expansion pack for the science fiction first-person shooter video game Half-Life.

Wikipedia · Wikidata Q693937 · date from Wikidata (CC0), queried via QLever, updated 2026-11-01 ·more video games

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