What time do i need to start camping for wimbledon tickets on tuesday 30th june?

i want to go to Wimbledon but i was wondering what time i would need to start queuing to get centre court tickets?
and also does anyone know who is playing on tuesday is federer?

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia…).