Can I apply for ILR prior to 5 years?

[Charlotte1234]

Hello
My husband has almost completed his five years UK residency on a spouse/unmarried partner visa. We want to apply via the same day appointment service, but I am unsure when we can do this.
His initial spouse visa was granted on 15/05/2013. This was then renewed and expires on 15/05/2018.
This means he will only hit 5 years on the date of his visa expiry.
I have read online that it is possible to apply 28 days before, but is this the case for the same day appointments?
Ideally we would book a date a few days before this, just in case there are no appointments available on the 15th when they are released. However, we don't want to apply for an appointment on say, 9th May 2018 for it to be refused because he is 6 days short of his 5 year period.
Does anyone know if it is therefore possible to apply a few days in advance, or must we wait until the 15/05/2018?
Thank you
Charlotte

[Casa]

You can apply 28 days before the expiry date, even if applying in person at the PSC.

[cyclina1]

Hello
My husband has almost completed his five years UK residency on a spouse/unmarried partner visa. We want to apply via the same day appointment service, but I am unsure when we can do this.
His initial spouse visa was granted on 15/05/2013. This was then renewed and expires on 15/05/2018.
This means he will only hit 5 years on the date of his visa expiry.
I have read online that it is possible to apply 28 days before, but is this the case for the same day appointments?
Ideally we would book a date a few days before this, just in case there are no appointments available on the 15th when they are released. However, we don't want to apply for an appointment on say, 9th May 2018 for it to be refused because he is 6 days short of his 5 year period.
Does anyone know if it is therefore possible to apply a few days in advance, or must we wait until the 15/05/2018?
Thank you
Charlotte

Casa is correct. No worries.

[Charlotte1234]

Thank you both. Appointment booked for 5 May.