[Solved] Game world age?

[intermediateuser]

Is there an easy way to tell how old the game world is?  I know entities have a "ticksExisted" variable, but I can't find such a thing for the game world.  It's possible I'm not looking in the right places, so if I am, please let me know.

 

Alternatively, if there is no such easy reference, I'd like to use NBT to write to a file the timestamp the world is first generated, and from that point on I can just have methods check against that to determine how old that particular game world is.  Is there a file that contains world data like this?  If so, how do I write to it and read from it?

[Moritz]

there is a function in the worldclass.

 

Name of it is getTotalWorldTime()

 

i think that is what you're watching for

[intermediateuser]

there is a function in the worldclass.

 

Name of it is getTotalWorldTime()

 

i think that is what you're watching for

 

That's exactly what I needed.  Thank you!