Apply for citizenship with less than 6 years

Hello,

I got my settled status 3 months before having lived for 5 years in the UK (I arrived in the UK in March 2016 but got my Settled status in Dec 2020), and I was wondering if I can apply for citizenship exactly 1 years after getting the Settled status (in Dec 2021) or do I need to wait until Match 2022.

Thanks!

It is 12 months from acquiring Settled Status, i.e. Dec 2021