The Verge's This weekend, China embarks on a historic mission to land on the far side of the Moon says (near the end):
We know that the mission is set to launch on top of one of China’s Long March 3B rockets from the country’s Xichang Satellite Launch Center. And thanks to air closure notices, takeoff time is estimated to occur around 1:30PM ET on Friday, December 7th. China may only announce that the mission was a success after the spacecraft is on its way to the Moon, though Jones says we might hear earlier than that from other sources.
“It might be that the first indication we have of launch is that some poor soul near Xichang launch center is woken up thinking there’s an earthquake and complaining about it on social media.” Jones says.
If Chang’e-4 does make it to space, it will spend less than a month traveling to the Moon, likely touching down sometime in the first week of January. If that happens, China will have officially moved into its own elite group, as the only country to visit the side of the Moon we cannot see from Earth.
Question: Launch is tomorrow, so I'm wondering why it will take a month to get to the Moon? An easy explanation might be that it will reach lunar orbit in several days, and then take several weeks before it lands on the Moon, but there are lower energy orbits that take several weeks to get there, and Chang'e-4 is over a ton, so maybe the fuel saving compared to a "direct flight" is worth something in terms of delta-v.