In British and Irish tradition, the quarter days were the four dates in each year on which servants were hired, and rents and rates were due. They fell on four religious festivals roughly three months apart.
The significance of quarter days is now limited, although leasehold payments and rents for business premises in England are often still due on the old English quarter days.

In Ireland
The Irish quarter days were observed on the same days as in England. They are no longer generally observed.