23 March is longer, for example.
The equinoxes (approximately 21 March & 21 Sept).
The longest day happens on the summer solstice, June 21 in the north and December 21 in the south e.g. Australia.
The number of seconds or minutes gained per day is different for every date, and for every latitude. It runs in a sinusoidal curve; starting from a trough on December 21, the day length begins to CREEP up slowly, day by day, a few seconds, then many seconds, then an additional minute each day. By March 21, the equinox, the Alberta BC days are getting rapidly longer; 4 minutes each day! Then the pace of increase slows, until mid June when the days are getting only seconds longer each day until June 21, when the cycle peaks and begins to fall.
At 41 degrees north latitude, you gain some length of daylight every day from December 21 until June 21, and you lose some length of daylight every day from June 21 until December 21. The number of minutes difference from one day to the next also changes. It's greatest on March 21 and on September 21, and when you get to June 21 or December 21, it's almost nothing.
The North Pole is dark for six months- from the September Equinox (September 21) to the March Equinox (March 21).
March 22. The days will get slightly longer each day until the summer solstice, the longest day,June21 or 22, then get slightly shorter until the winter solstice, Dec 21 or 22, the shortest day.
-- They only get longer between December 21 and June 21. For the other half of the year, they get shorter. -- Just after December 21 and just before June 21, they get longer very slowly ... only a small difference between one day and the next. -- Around March 21, they get longer fast ... many minutes' difference between one day and the next. EDIT: The length of the day differs by 4 minutes each day throughout the year.
March 21 1994 was a Monday.
March 21 1964 was a Saturday.
March 21 1962 was a Wednesday.
March 21, 1966 was the 3rd Monday in March for that year.
21 March 1950 was a Tuesday.
21 March 1959 was a Saturday.
March 21, 2003 fell on a Friday.
March 21 2005 was a Monday.
March 21 1946 was a Thursday.
March 21 2010 was a Sunday.