According to Official Guinness Records,
The longest duration suspended in the air by rice bowl suction on the stomach is 12 minutes and 2 seconds and was achieved by Zhou Pengcheng (China) on the set of CCTV-Guinness World Records Special in Xiamen, Fujian, China on 9 September 2014.
For a complete list of 2014 records, please visit 2014 Guinness Records in China.