It depends on many factors.

1) Type of formwork use
2) Floor area per floor
3) Complexity of the structure
4) Design

This is just for progress of structure works. For architectural works, it normally take around 7 to 8 months from concrete topping up works.

Aluminium formwork usually take around 7 days circle per floor for typical floor.

To judge whether a condominium project is on time or not maybe one can calculate is such a way,

From the SPA VP date, minus 4 month for getting CCC after CPC, then minus 8 months for general architectural works.

Then use this date minus current date, this will be your total month to carry out the structural works. Then use this period divide by total story of your condominium, that will let you judge how many days in average are needed per floor in order to deliver the project on time.

But some floor will take longer time to complete, such as the podium, 1st typical floor, transfer floor, non typical floor and etc.

Hope this help.

Fastest i heard before is 6 days in average. 4 days maybe happened once in a blue moon.

From my previous study China those super highrise (above 70 storey), they can achieve 3 days circle in average. Center core is reinforced concrete while others are steel structure with bondeck.