there is no set maximum number of days you need to be in the UK to get ILR, but the UK is suppose to be your HOME, i think the ECO can use their discretion.
but there are a set maximum number of days you can be out of the UK to apply for citizenship.
Residential requirements
In order to demonstrate the residential requirements for naturalisation you need to:
* have been resident in the United Kingdom for at least three years (this is known as the residential qualifying period); and
* have been present in the United Kingdom three years before the date of your application; and
* have not spent more than 270 days outside the United Kingdom during the three-year period; and
* have not spend more than 90 days outside the United Kingdom in the last 12 months of the three-year period; and
* have not been in breach of the immigration rules at any stage during the three-year period.
http://www.ukba.homeoffice.gov.uk/br...tnerofcitizen/
so if we go off the guidelines for citizenship (270 days / 3yrs) = max of 90 days a year outside the UK you shouldn't have a problem getting ILR.
but if you have a valid reason you could get away with having more days out of the uk, but like i said there is no exact figure, so to be safe try not to be out of the uk more than 90 days a year and you shouldn't have a problem getting ILR or Citizenship
