A year in the Gregorian calendar having 366 days, with the extra day, February 29, intercalated to compensate for the quarter-day difference between an ordinary year and the astronomical year.
英
美
- 闰年:格里高利历法中有366天的一年,多出的一天,用2月29日,即闰日来补偿普通年与天文年之间四分之一天的差别