The Cube Method. If you have a little bit of time on your hands, you can cut the stick(s) of butter into fourths and then cube into small pieces. The smaller the cubes, the quicker the butter will soften. Just leave them at room temperature for about an hour or until soft to the touch.
The first successful Venus flyby was NASAâs Mariner 2. This spacecraft was launched on August 8th, 1962 and made a successful flyby on December 14, 1962. So that calculates to 110 days from launch to arrival at Venus. The most recent spacecraft to fly to Venus was ESAâs Venus Express. It was launched on November 9th, 2005, and took 153 days to make the journey to Venus.
The Moon is 385000 km from Earth (in average). The average distance of Venus is 108000000 km from Earth. So the ratio is #108000000/385000 \approx 280#. The rocket used to go to the Moon, the Saturn V, took 3 days. Then, a similar rocket, would take #3*280=840# days or #2.3# years. Of course a mission on Venus would probably be done with a better technology and fastest rocket, so this is just a guess.