Leap year starting on Friday

A leap year starting on Friday is any year with 366 days that begins on Friday 1 January and ends on Saturday 31 December. Its dominical letters hence are CB. The most recent year of such kind was 2016, and the next one will be 2044 in the Gregorian calendar or, likewise, 2000 and 2028 in the obsolete Julian calendar.
Any leap year that starts on Friday has only one Friday the 13th: the only one in this leap year occurs in May. Common years starting on Saturday share this characteristic. This is also the only year in which February has five Mondays, as the leap day adds that extra Monday.
This year has two months which begin on a weekend-day. Since at least one month begins on each day of the week in all years, this is the fewest possible number of months to begin on a weekend-day in a given year; this also occurs in a common year starting on Friday, in which case the two months are May and August.

Applicable years

Gregorian Calendar

Leap years that begin on Friday, along with those starting on Sunday, occur most frequently: 15 of the 97 total leap years in a 400-year cycle of the Gregorian calendar. Thus, their overall occurrence is 3.75%.
For this kind of year, the ISO week 10 and all subsequent ISO weeks occur later than in all other leap years.

0–99	16	44	72
100–199	112	140	168	196
200–299	208	236	264	292
300–399	304	332	360	388

Julian Calendar

Like all leap year types, the one starting with 1 January on a Friday 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).

Decade	1st	2nd	3rd	4th	5th	6th	7th	8th	9th	10th
15th century		1412		1440			1468			1496
16th century			1524			1552		1580
17th century	1608			1636			1664			1692
18th century		1720			1748			1776
19th century	1804			1832		1860			1888
20th century		1916			1944			1972		2000
21st century			2028			2056			2084
22nd century		2112		2140			2168			2196

Holidays

International

Valentine's Day falls on a Sunday. This is the only type of leap year when Valentine’s Day falls in ISO week 6. They fall in ISO week 7 in all other leap years.
The leap day falls on a Monday.
World Day for Grandparents and the Elderly falls on July 24.
Halloween falls on a Monday.
Christmas Day falls on a Sunday. This is the only type of leap year when Christmas Day falls in ISO week 51. They fall in ISO week 52 in all other leap years.

Roman Catholic Solemnities

Epiphany falls on a Wednesday
Candlemas falls on a Tuesday
Saint Joseph's Day falls on a Saturday
The Annunciation of Jesus falls on a Friday
The Nativity of John the Baptist falls on a Friday
The Solemnity of Saints Peter and Paul falls on a Wednesday
The Transfiguration of Jesus falls on a Saturday
The Assumption of Mary falls on a Monday
The Exaltation of the Holy Cross falls on a Wednesday
All Saints' Day falls on a Tuesday
All Souls' Day falls on a Wednesday
The Feast of Christ the King falls on its earliest possible date, November 20
The First Sunday of Advent falls on its earliest possible date, November 27. This is the only leap year when The First Sunday of Advent falls in ISO week 47. They fall in ISO week 48 in all other leap years.
The Immaculate Conception falls on a Thursday
Gaudete Sunday falls on its earliest possible date, December 11. This is the only leap year when Gaduete Sunday falls in ISO week 49. They fall in ISO week 50 in all other leap years.
Rorate Sunday falls on its earliest possible date, December 18. This is the only leap year when Rorate Sunday falls in ISO week 50. They fall in ISO week 51 in all other leap years.

Australia and New Zealand

Australia Day falls on a Tuesday
Waitangi Day falls on a Saturday
Daylight saving ends on April 3
ANZAC Day falls on a Monday
Mother's Day falls on its earliest possible date, May 8. This is the only leap year when Mother’s Day falls in ISO week 18. They fall in ISO week 19 in all other leap years.
Father's Day falls on September 4
Daylight saving begins on September 25 in New Zealand and October 2 in Australia

British Isles

Saint David's Day falls on a Tuesday
Mother's Day falls on March 6, March 13, March 20, March 27 or April 3
Daylight saving begins on March 27
Saint Patrick's Day falls on a Thursday
Saint George's Day falls on a Saturday
Father's Day falls on June 19
Orangeman's Day falls on a Tuesday
Daylight saving ends on October 30
Guy Fawkes Night falls on a Saturday
Saint Andrew's Day falls on a Wednesday

Canada

Daylight saving begins on March 13
Mother's Day falls on its earliest possible date, May 8. This is the only leap year when Mother’s Day falls in ISO week 18. They fall in ISO week 19 in all other leap years
Victoria Day falls on May 23
Father's Day falls on June 19
Canada Day falls on a Friday
Labour Day falls on September 5
Thanksgiving Day falls on October 10
Daylight saving ends on November 6

United States

Martin Luther King Jr. Day falls on January 18
President's Day falls on its earliest possible date, February 15. This is the only leap year when President’s Day falls in ISO week 7. They fall in ISO week 8 in all other leap years. This is also the only leap year when Labor Day that precedes this type of year to President’s Day in this type of year are only 23 weeks apart. They are 24 weeks apart in all other leap years.
Daylight saving begins on March 13
Mother's Day falls on its earliest possible date, May 8. This is the only leap year when Mother’s Day falls in ISO week 18. They fall in ISO week 19 in all other leap years.
Memorial Day falls on May 30
Juneteenth and Father's Day coincide on Sunday, June 19. This is the only leap year when Juneteenth falls in ISO week 24. They fall in ISO week 25 in all other leap years.
Independence Day falls on a Monday
Labor Day falls on September 5
Grandparents' Day falls on September 11
Columbus Day falls on October 10
Daylight saving ends on November 6
Election Day falls on its latest possible date, November 8
Thanksgiving Day falls on November 24