one of those days

(just) one of those days

A day in which many different things go wrong or not as desired; a frustrating or difficult day. Sorry for getting upset with you; it's been just one of those days. First the computer wouldn't turn on, then the Internet started acting up—I could tell it was going to be one of those days.
See also: days, of, one, those
Farlex Dictionary of Idioms.

one of those days

Also, just one of those days. A day when everything goes wrong, as in The car wouldn't start, I lost my glasses-it was one of those days. This expression was first recorded in 1936.
See also: days, of, one, those
The American Heritage® Dictionary of Idioms by Christine Ammer.

one of those days

a day when several things go wrong.
See also: days, of, one, those
Farlex Partner Idioms Dictionary

(just) one of those ˈdays

a day on which unpleasant things happen: It’s been one of those days. I lost my keys and then I fell over running for the bus.
See also: days, of, one, those
Farlex Partner Idioms Dictionary

one of those days

A difficult or trying day.
See also: days, of, one, those
American Heritage® Dictionary of the English Language, Fifth Edition.
See also:
  • (just) one of those days
  • day off
  • not (one's) day
  • not one's day, this is
  • not someone's day
  • from day one
  • day one
  • just another day at the office
  • face the day
  • from day to day
References in periodicals archive
He told the club's website: "I was thinking it could have been one of those days where nothing goes in.
Far from one of those days for Mariners' hat-trick hero; FA TROPHY
Moyes said: "We've not had many off-days this season or since before January last year, but this was just one of those days when it just didn't go well at all.
ONE OF THOSE DAZE
City coach Platt said: "Things like that usually even themselves out for strikers and it was just one of those days for Carlos.
"It was one of those days - but we've taken nine points from three games and that's what matters most.
WHAT A WASTE, CARLOS
WOLVES must quickly shrug off Saturday's 6-0 mauling by Southampton as "just one of those days" -according to a club legend who featured the last time they spilled six goals at Molineux.
Football: Wolves should move on - Carr; WOLVES NEWS
Vazquez, who is a catcher on his Housing Authority softball team, described his actions as "just one of those days that you happen to be there at the right time."
Amazing catch saves baby
Alan Shearer has written off yesterday's defeat by Fulham as just one of those days (writes Alan Oliver).
Look ahead, urges Big Al
Moyes said: "We've not had many of these days this season or since before January last year, but this was one of those days when it just didn't go well at all.
Moyes dazed