Folks,
What RAFAT has to say is correct, and in accordance with ICAO Annex 1 for logging flight time.
Once again, those of you who make stupid remarks about about "pretend command time" and other similar derogatory remarks just air your ignorance.
P1U/S, ICUS, AICUS, Command Practice or however described is not command time, and nobody who knows what they are talking about pretends that it is.
It was not invented for modern cadet pilots to log in command to make up minimums for an ALTP/ATPL/ATR. It pre-dates any post WWII cadet schemes, of which I am aware.
Annex 1, little changed except for the MPL, goes back to the foundation of ICAO, and a deal of the technical detail predates ICAO, and goes back to ICAN.
P1U/S etc is a record of the sectors operated by an F/O as what we now call "pilot flying". No more and no less.
Australia used to comply with Annex 1, until some time in the 1970s, when Australia became non-compliant by introducing the present ratbag rules. I am alway ammused, and sometimes bemused at the common Australian pilot attitude, "we know better than the rest of the world", praising themselves as "the only soldier in the battalion in step".
Tootle pip!!