Common year starting on Thursday


A common year starting on Thursday is any non-leap year that begins on Thursday, 1 January, and ends on Thursday, 31 December. Its dominical letter hence is D. The current year, 2026, is a common year starting on Thursday in the Gregorian calendar, and the next such year will be 2037, or, likewise, 2021 and 2027 in the obsolete Julian calendar, see below for more.
This is the only common year with three occurrences of Friday the 13th: those three in this common year occur in February, March, and November. Leap years starting on Sunday share this characteristic, for the months January, April and July. From February until March in this type of year is also the shortest period that runs between two instances of Friday the 13th. Additionally, this is the one of only two types of years overall where a rectangular February is possible, in places where Sunday is considered to be the first day of the week. Common years starting on Friday share this characteristic, when Monday is considered to be the first day of the week.
This year has four months which begin on a weekend-day.

Applicable years

Gregorian Calendar

In the Gregorian calendar, alongside Tuesday, the fourteen types of year repeat in a 400-year cycle. Forty-four common years per cycle or exactly 11% start on a Thursday. The 28-year sub-cycle only spans across century years divisible by 400, e.g. 1600, 2000, and 2400.
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 common years.
0–99915263743546571829399
100–199105111122133139150161167178189195
200–299201207218229235246257263274285291
300–399303314325331342353359370381387398

Julian Calendar

In the now-obsolete Julian calendar, the fourteen types of year repeat in a 28-year cycle. A leap year has two adjoining dominical letters. This sequence occurs exactly once within a cycle, and every common letter thrice.
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). Years 3, 14 and 20 of the cycle are common years beginning on Thursday. 2017 is year 10 of the cycle. Approximately 10.71% of all years are common years beginning on Thursday.

Holidays

International

Roman Catholic Solemnities

Australia and New Zealand

British Isles

Canada

Denmark

Germany

United States