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In the Expires column of the Keychain Access application I can see the expiration date of certificates. Strangely these dates do not match the actual expiration. See below for an example. This mismatch is the case for all certificates I have in my keychain. enter image description here
But when I double click it I see an expiration date of 30 May 2020. enter image description here
I'm on Mac OS 10.8.2.
How do I make the dates match?

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