In wartabs guide (https://docs.google.com/document/d/1YeDQ2aDdD8-dGbKUjqYi4LOMEJYsi_V6H6fqGQ9Zoi8/edit) On of the first notes is to "Set your console date and time so it’s 15th February after Weather Institute."

but as far as i can tell the guide never elaborates on this, and it dosnt have any explanation behind why.

can someone enlighten me?

It’s to prevent rain on that route. Not super important so don’t worry if you forget it