->'''Rincewind:''' Exactly how long have you been a barbarian hero?
->'''Nijel the Destroyer:''' Er. What year is this?
->'''Rincewind:''' Out on the road, then? Lost track of time? I know how it is. This is the year of the Hyena.
->'''Nijel:''' Oh, in that case about... about three days.
-->''Discworld/{{Sourcery}}'', Creator/TerryPratchett

Alice asks Bob how long something has been going on. Bob asks Alice what time/day it is, and Alice tells him.

Bob's response then reveals that whatever information Alice gave him is irrelevant.

Not to be confused with LudicrousPrecision.

----
!!Examples:

[[AC:{{Film}}]]
* ''Film/TheLittleRascals'' movie:
-->'''Butch:''' When's the last time we beat you up?
-->'''Alfalfa:''' Well, let's see...today's the 10th...30 days hath September, April, June and November...it's not a leap year...yesterday.
* ''Film/{{Scrooged}}'': "Listen, I know I haven't talked to you in... *checks watch* ...about 10 or 15 years, but..."
* In Woody Allen's ''Film/LoveAndDeath'':
--> '''Countess Alexandrovna:''' How long has it been since you've made love to a woman?
--> '''Boris:''' What's today? Monday, Tuesday...two years.
* From ''Film/{{Zookeeper}}''
--> '''Griffin:''' How long have you been able to talk??
--> '''Monkey:''' Let's see, today's Tuesday, so, ummm...always.

[[AC:{{Literature}}]]
* Creator/TerryPratchett uses this trope regularly.
** In addition to the quote from ''Discworld/{{Sourcery}}''...
** In ''Discworld/InterestingTimes'', Rincewind asks Cohen the Barbarian how old he is. What century is it? Ninety to 95 years.
** In ''Discworld/NightWatch'', Vimes asks when Dibbler Enterprises, Est. was established. What year is it? Tuesday.

[[AC:LiveActionTV]]
* ''Series/TwoAndAHalfMen''
--> '''Alan:''' How about this: When was the last time you called her just to see how she was doing?
--> '''Charlie:''' Uh, whoo. What's today, Sunday? Then never.
* ''{{Friends}}'', "The One With The Thumb":
--> '''Joey:''' So when do we get to meet the guy?
--> '''Monica:''' Let's see, today's Monday... never.

[[AC:{{Mechanima}}]]
* ''RedVsBlue'':
--> '''Washington:''' How long have you been here?
--> '''Church:''' How long? Um... What day is today?
--> '''Washington:''' Today is Tuesday.
--> '''Church:''' I've been here 14 months.

[[AC:{{Radio}}]]
* ''AdventuresInOdyssey'' "Aloha Oy!"
--> '''Donna:''' How many years have you lived in Hawaii Mr. Iowa?
--> '''Don Iowa:''' Oh the islands we don't measure time in years but in full moons.
--> '''Donna:''' Okay, how many full moons have you lived here?
--> '''Don Iowa:''' Hm, about three years worth.

[[AC:WebAnimation]]
* ''LlamasWithHats''
** While not technically time-based, this conversation rings of it:
--> '''Paul:''' ...Where are all the other lifeboats, Carl?
--> '''Carl:''' Well, judging by the trajectory of the moon and the stars, I'd say... somewhere at the bottom of the ocean. I bit lots of holes in them.

[[AC:WesternAnimation]]
* ''FriskyDingo'', Second season:
--> '''Interviewer:''' Well, it's been a year now-
--> '''Xander:''' A Year?! It's really been a whole year? What's today?
--> '''Interviewer:''' Thursday.
--> '''Xander:''' Oh my God, it has been a year.

----