What is the best way to arrive from Zhuhai to Macau? How many hours to get there?

Well, the transportation is quite convenient. You can just enter Macau from Gongbei Port. However, if you wanna know the exact travel time, you'd better to tell me the starting place.
In addition, Mainland visa is necessary when you touring around ZH. For Macau, if you are Israel Passport Holder, you can enjoy 90 days visa free policy!

The starting place will be:
Venue: International Convention & Exhibition Center
Address: No.1663, Yinwan Road, China (Shizimen
Thank you very much for the answer.

Oh, the distance between the exhibition center and Gongbei Port is about 5.5 miles (9 kilometers).
Thus you can take a taxi to go there directly. It costs around CNY 30 in the day time.