Common year starting on Thursday

Common year starting on Thursday
A common year starting on Thursday is any non-leap year (i.e. a year with 365 days) that begins on Thursday, 1 January, and ends on Thursday, 31 December. Its dominical letter hence is D. The most recent year of such kind was 2015 and the next one will be 2026 in the Gregorian calendar 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 (one month) that runs between two instances of Friday the 13th.
Calendars
Applicable years
Gregorian Calendar
In the (currently used) Gregorian calendar, alongside Tuesday, the fourteen types of year (seven common, seven leap) repeat in a 400-year cycle (20871 weeks). 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.
Julian Calendar
In the now-obsolete Julian calendar, the fourteen types of year (seven common, seven leap) repeat in a 28-year cycle (1461 weeks). A leap year has two adjoining dominical letters (one for January and February and the other for March to December, as 29 February has no letter). 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 ((year + 8) mod 28) + 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
Valentine's Day falls on a Saturday
World Day for Grandparents and the Elderly falls on July 26
Halloween falls on a Saturday
Christmas Day falls on a Friday
Roman Catholic Solemnities
Epiphany falls on a Tuesday
Candlemas falls on a Monday
Saint Joseph's Day falls on a Thursday
The Annunciation of Jesus falls on a Wednesday
The Nativity of John the Baptist falls on a Wednesday
The Solemnity of Saints Peter and Paul falls on a Monday
The Transfiguration of Jesus falls on a Thursday
The Assumption of Mary falls on a Saturday
The Exaltation of the Holy Cross falls on a Monday
All Saints' Day falls on a Sunday
All Souls' Day falls on a Monday
The Feast of Christ the King falls on November 22 (or on its earliest possible date of October 25 in versions of the calendar between 1925 and 1962)
The First Sunday of Advent falls on November 29
The Immaculate Conception falls on a Tuesday
Gaudete Sunday falls on December 13
Rorate Sunday falls on December 20
Australia and New Zealand
Australia Day falls on a Monday
Waitangi Day falls on a Friday
Daylight saving ends on April 5
ANZAC Day falls on a Saturday
Mother's Day falls on May 10
Father's Day falls on September 6
Daylight saving begins on September 27 in New Zealand and October 4 in Australia
British Isles
Saint David's Day falls on a Sunday
Mother's Day falls on its earliest possible date of March 1, or on March 8, March 15, March 22 or March 29
Saint Patrick's Day falls on a Tuesday
Daylight saving begins on March 29
Saint George's Day falls on a Thursday
Father's Day falls on its latest possible date, June 21
Orangeman's Day falls on a Sunday
Daylight saving ends on its earliest possible date, October 25
Guy Fawkes Night falls on a Thursday
Saint Andrew's Day falls on a Monday
Canada
Daylight saving begins on its earliest possible date, March 8
Mother's Day falls on May 10
Victoria Day falls on its earliest possible date, May 18
Father's Day falls on its latest possible date, June 21
Canada Day falls on a Wednesday
Labour Day falls on its latest possible date, September 7 – this is the only common year when Victoria Day and Labour Day are sixteen weeks apart (they are fifteen weeks apart in all other common years)
Thanksgiving Day falls on October 12
Daylight saving ends on its earliest possible date, November 1
United States
Martin Luther King Jr. Day falls on January 19
President's Day falls on February 16
Daylight saving begins on its earliest possible date, March 8
Mother's Day falls on May 10
Memorial Day falls on its earliest possible date, May 25
Juneteenth falls on a Friday
Father's Day falls on its latest possible date, June 21
Independence Day falls on a Saturday
Labor Day falls on its latest possible date, September 7 – this is the only common year when Memorial Day and Labor Day are fifteen weeks apart (they are fourteen weeks apart in all other common years)
Grandparents' Day falls on its latest possible date, September 13
Columbus Day falls on October 12
Daylight saving ends on its earliest possible date, November 1
Thanksgiving Day falls on November 26
References
Gregorian calendar
Julian calendar
Thursday