The exact length of a year should be changed to exactly 365.0 days, since there is a way without any noticeable difference in the smaller units of time. If the exact length of a second were officially increased by just 1/1460th of a second, to a total of
1.0006849315 seconds, and all new clocks had the same difference, then the difference of 1/1460th every second would add up over each year and fulfill the remaining quarter of a day, to an exact total of 365.0 days. So such an unnoticeable difference of less than a millisecond extra for every second would be worth every year being exactly 365 days, amirite?