1 Jan	New Year's Day (ENG, NIR, WAL)
1 Jan	New Year's Day (Scotland)
5 Jan	Twelfth Night
6 Jan	Epiphany
7 Jan	Orthodox Christmas Day
14 Jan	Orthodox New Year
24 Jan	Lunar New Year
8 Feb	Tu B'Shevat (Arbor Day)
14 Feb	Valentine's Day
25 Feb	Carnival / Shrove Tuesday / Pancake Day
26 Feb	Carnival / Ash Wednesday
1 Mar	St. David's Day (Wales)
4 Mar	Eid al-Adha
8 Mar	Purim
17 Mar	St Patrick's Day (Northern Ireland)
22 Mar	Mother's Day
24 Mar	Muharram/Islamic New Year
2 Apr	Ashura
5 Apr	Palm Sunday
7 Apr	First day of Passover
9 Apr	Maundy Thursday
10 Apr	Orthodox Good Friday
10 Apr	Good Friday
11 Apr	Holy Saturday
11 Apr	Orthodox Holy Saturday
12 Apr	Orthodox Easter
12 Apr	Easter Sunday
13 Apr	Orthodox Easter Monday
13 Apr	Easter Monday (ENG, NIR, WAL)
14 Apr	Last day of Passover
20 Apr	Yom HaShoah
23 Apr	St. George's Day
23 Apr	Shakespeare Day
10 May	Lag B'Omer
21 May	Ascension Day
27 May	Shavuot

31 May	Pentecost
1 Jun	Whit Monday
1 Jun	Spring Bank Holiday
2 Jun	Milad un Nabi (Mawlid)
7 Jun	Trinity Sunday
11 Jun	Corpus Christi
12 Jul	Battle of the Boyne (Northern Ireland)
13 Jul	'Battle of the Boyne' observed (Northern Ireland)
28 Jul	Tisha B'Av
3 Aug	Summer Bank Holiday
15 Aug	Assumption of Mary
17 Sep	Rosh Hashana
26 Sep	Yom Kippur
1 Oct	First day of Sukkot
4 Oct	Feast of St Francis of Assisi
7 Oct	Hoshana Rabbah
8 Oct	Shemini Atzeret
9 Oct	Simchat Torah
13 Oct	Isra and Mi'raj
31 Oct	Halloween
1 Nov	All Saints' Day
2 Nov	All Souls' Day
5 Nov	Guy Fawkes Day
11 Nov	Remembrance Sunday
15 Nov	Ramadan Start
29 Nov	First Sunday of Advent
8 Dec	Feast of the Immaculate Conception
9 Dec	First Day of Hanukkah
10 Dec	Laylatul Qadr (Night of Power)
15 Dec	Eid ul Fitr
16 Dec	Last day of Hanukkah
24 Dec	Christmas Eve
25 Dec	Christmas Day
26 Dec	Boxing Day (ENG, NIR, WAL)
28 Dec	Bank Holiday
31 Dec	New Year's Eve

Add more holidays/observances: Clock Change Dates | Seasons

	New Moon.		1st Quarter.
	Full Moon.		3rd Quarter.