Leap year starting on Thursday


A leap year starting on Thursday is any year with 366 days that begins on Thursday 1 January, and ends on Friday 31 December. Its dominical letters hence are DC, such as the years 1880, 1920, 1948, 1976, 2004, 2032, 2060, and 2088, in the Gregorian calendar or, likewise, 1988, 2016, and 2044 in the obsolete Julian calendar. Any leap year that starts on Monday, Wednesday or Thursday has two Friday the 13ths. This leap year contains two Friday the 13ths in February and August. This leap year is also the longest gap between leap day and daylight saving time begins in US by days or weeks.

Calendars

Applicable years

Gregorian Calendar

Leap years that begin on Thursday, along with those that start on Monday or Saturday, occur least frequently: 13 out of 97 total leap years in a 400-year cycle of the Gregorian calendar. Their overall occurrence is 3.25%.
For this kind of year, the corresponding ISO year has 53 weeks, and the ISO week 10 and all subsequent ISO weeks occur earlier than in all other years. That means, moveable holidays may occur one calendar week later than otherwise possible, e.g. Gregorian Easter Sunday in week 17.
Decade1st2nd3rd4th5th6th7th8th9th10th
17th century1604163216601688
18th century172817561784
19th century182418521880
20th century192019481976
21st century2004203220602088
22nd century212821562184
23rd century222422522280
24th century232023482376
25th century2404243224602488
26th century252825562584

Julian Calendar

Like all leap year types, the one starting with 1 January on a Thursday occurs exactly once in a 28-year cycle in the Julian calendar, i.e. in 3.57% of years. As the Julian calendar repeats after 28 years that means it will also repeat after 700 years, i.e. 25 cycles. The year's position in the cycle is given by the formula + 1).
Decade1st2nd3rd4th5th6th7th8th9th10th
15th century142814561484
16th century1512154015681596
17th century162416521680
18th century1708173617641792
19th century182018481876
20th century1904193219601988
21st century2016204420722100
22nd century212821562184