What is the MTR route journey time from Hung Hom to Shenzhen International Airport?

So you wanna travel from Hung Hom Station, HK to Shenzhen Airport by metro? If so, the whole trip takes around two hours.

The route is as follows: East Rail Line (from Hung Hom to Lo Wu) - crossing the immigration to Shenzhen Luohu - Shenzhen Luobao Line (Luohu to Hourui) - shuttle bus from Hourui to the airport