Unlike the north side of k2, there is no single set itinerary for Tibet, but after years of experimentation we have a functional template we base most trips off. This is a basic schedule for a trip to a 6000m alpine peak, possibly a first ascent.
Day 1 & 2: Arrive Chengdu, last minute supplies
Days 3 – 5: Transit to step-off town, via overnights at progressively higher altitudes en-route
Days 6 & 7: Town-based acclimation days (usually around 4000m), daily high hikes as access recce, last minute supplies
Day 8: Transit to trailhead, begin approach
Days 9 – 11: Approach days to basecamp
Days 12 - 18: On-mountain climbing
Days 19: Return to road head & transit to town
Day 20: Decompression & reorganization around town
Days 21: Transit to Chengdu, final night in Tibet
Day 22: Finalize trip
This schedule can be easily adapted, doubled-up or even tripled-up towards a wide variety of trips, with elements like rest time in towns or accounting for existing acclimation worked in.
All our trips begin with a generous acclimation schedule, taking advantage of China's infrastructure to achieve a large proportion of acclimation in towns before hitting the approach.