Can I change the time until the asteroid crashes down after the server started?

Hi there, I set up a server for me and my friends shortly after update 0.10 arrived. We played a lot and made decent progress (for a group of six people at least) and then came christmas.

Despite our plans, we all haven't played since just before Christmas and it's just now that we're continuing. Problem: The meteor will hit in 6 days, we have just built the first generator for electricity.

In short: it's not going to work out.

We would like to postpone the impact by 10 days. Is this possible for the server admin; what needs to be set?

Or is that not possible and should we restart straight away?

Thanxalot in advance - btw happy new year!