The clock starts when Ryder starts moving, and stops finishing the last interface console of the final boss fight.

GLITCHLESS means that I won't be taking advantage of any kind of glitches at all, No phasing through locked doors, no moving out of bounds, etc.

SKIPLESS means that I won't be skipping fights intended to be mandatory, nor will skip console interface activations that are supposed to be mandatory to proceed (Eos Vault and Meridian Control are good examples of some you can easily skip).