That is similar to the idea of a leap day.

Also that 366 days would be a full year even if a leap day was included.

A leap day is added to February every four years.

After 36 years, this resulted in three too many leap days.

The plan was to skip all leap days in the period 1700 to 1740.

This will be the first instance of a full moon on a leap day since 1972.

Systems of leap days usually do not affect the week cycle.

To compensate for this, three leap days must be omitted every 400 years.

The leap day was introduced as part of the Julian reform.

She was one of few people born on a leap day to celebrate a centennial.

Four years ago, he said, his e-mail came primarily from leap day babies who had never met any others.

For example, there was no leap day in 1700, 1800 or 1900, but there is one this year.

I arrived here almost exactly six months ago, on leap day, timing that seemed appropriate enough to me.

Leap days are intercalated every six years, but there will be none during our stay.

March 0, although a nonexistent date, is often another name for the leap day February 29.

A period of four years ending on a leap day was to be called a Franciade.

He also skipped three leap days over 12 years in order to realign the year.

Because the ceremony is on Leap Day, the couple will have an anniversary every four years.

One example, which has lasted, was his reform of the calendar into the present format, with a leap day every four years.

According to Irish tradition, a man who is proposed to on leap day must accept the proposal.

It was also revealed that he has a Leap Day birthday and is 64/16 years old.

He was born in Auckland on leap day in 1852.

The next day it was Feb. 29, a leap day.

It is a yearly event, but its birthday is on leap day.

A single leap day could now be added to this extra short February: