By 7000 AD, Venus could feasibly have been terraformed, according to Martyn J. Fogg in Terraforming: Engineering Planetary Environments.
The game takes place on a terraformed version of Saturn's largest moon Titan where a planet-wide viral outbreak has taken place.
In the manga and anime series Aria by Kozue Amano, set on a terraformed Mars, the calendar year is also divided into twenty-four months.