Tier 1 ENT to ILR Absence Query

I am going to apply for ILR on Tier 1 Ent visa, completed my 6 years now as i was waiting for my Visa extension for 13 months so in total i have completed 6 years now, i just need to know the absence limit for some one applying for ILr on 5 years basis, Is it the same 180 days for 12 months and 540 days in total or is that half of 540 days because 540 is for 10 years route.

Different routes to ILR have different requirements. It is not HALF of 540 if applying through 5 years!!! It is 180 days max per 12 month cycle.