Yesterday, same thing. First day of reserve, SC at 1000, trip assigned at 1825 (domestic transcon) and close to duty time limits.

Captain looks at the addendum, my LATT is legal but no ability to extend. Asked me if I extended, I did not.

I wasn't asked to extend. I never agreed to extend duty day.

Are they able to automatically put you up to the extended day if on short call?