Every year Google organize an event which is Google I/O and it is a huge event for Android every year. Google's head of Chrome and Android, Sundar Pichai has posted the official dates on his Google+. The event will be held on May 28th and 29th in San Francisco. Here is the official site : Google I/O 2015
The registration tickets will be limited for this event, so make sure to get registered as soon as possible.
According to the official site of the Google I/O they have mentioned the official date and the time till the registration here is the registration page. It will begin and until when. Here are the dates and time : March 17 at 9:00 AM PDT and will remain open until March 19 at 5:00 PM PDT.
Also there is an hidden code in the site a shark (the reference is to a show of Katy Perry ) that you can also see animated ASCII, as shown in the gif below (from the site of the Google I / O, open the tools developers on your browser, navigate to the tab "console" and type experiment.consoleDance () ).
And who knows what other "secrets" encompasses the site of the Google I / O: If you were to unearth someone, do not hesitate to let us know.
VIA Android Police