“Time flies when you throw away calendars”

“Time flies” means that time passes quickly.  Time doesn’t literally “fly,” but there are jokes.
 
“Time flies when you throw away calendars” was posted on Twitter by Greg Myers on July 18, 2018.
   
“Why did the man throw a clock out the window?”/“To see time fly” and “Time flies when you’re throwing watches” are similar “time” riddles.
       
   
Twitter
Greg Myers
@Hunter_Downs
Time flies when you throw away calendars.
4:54 PM - 18 Jul 2018 from Houston, TX
 
Twitter
Raasbekkie
@RaasbekkieRSA
Time flies when you throw away calendars.
11:41 PM - 19 Jul 2018
 
Twitter
Wamwangi 😜
@Its_Wamwangi
Time flies when you throw away calendars.
5:14 AM - 20 Jul 2018
 
Twitter
Iron MaiDen
@Jetski_Nimaine
Time flies when you throw away calendars. #MaineHeroOnDaig
1:22 AM - 22 Jul 2018