afni.nimh.nih.gov

Every time I need to know this stuff I get confused and have to work it out from scratch-- and then I only know it for as long as I can hold it in my head. You could try `3dcalc -a fred+orig -expr t` to get a dataset containing the time at each voxel; this takes slice timing into account. Other than that, there's the help in README.attributes under "Time-Dependent Dataset Attributes", though it sounds like you've already read that.

ijs