Leap day

n.

闰日（指2月29日）；

Leap Day
Leap day
Leap Day
Tough Challenges, Hard Choices: Dealing with North Korea after the Collapse of the Leap Day Agreement
Leaping for Leap Day, February 29
Disaster management with limited local resources : the 2012 Illinois Leap Day EF-4 tornado
Leap Day programme conducted with kindergartens of HLC (Headstart Learning Centre) International School, Chennai
Leap-Day Bug Fingered in Microsoft Azure Cloud Outage
Leap Day asteroid to whiz past Earth
Leap day's silver lining for retail