pgp key expiring

[Dale Morris]

When I created my last pgp key, I set it to expire in 3 months. I
didn't want to have any more pgp keys laying around that I could no
longer use. But now, it appears my debian distro has found a home on
my hard drive and I'm not having to reformat :-) ..

question is: can I extend the time before this key expires, or do I
have to create a new key? How do you guys handle this sort of thing?
What's a reasonable time period for a key?

thanks
dale

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