How far into the future does the google calendar go?

[Quixote1818]

This may seem like a strange question but I got up to 2050 and it kept going which made me wonder if it goes on for a thousand, a million a googol or a googolplex years? How much memory would it take for it to keep going for a googolplex years anyway?

By the way a googol is 1 followed by 100 zero's and a googolplex is one followed by a googol zero's.

https://www.google.com/calendar/render