11:59 p.m. 

A time used to avoid disambiguation of today/tomorrow when dealing with midnight.

Me: I need you to finish this before Friday 11:59 p.m.
You: Ok sure.
vs
Me: I need you to finish this before Friday Midnight
You: er, so hand it in on thursday or friday?
Me: ... Friday...
You: But Isn't midnight the first moment of the day?
Me: Shuddup.

11:59 p.m. by ryantheleach April 24, 2018

11:59 p.m. 

at the end of the day

At 11:59 p.m., we're all just squirrels looking for nuts.

11:59 p.m. by squeezy esq July 16, 2010

11:59 pm 

When every Google Classroom assignment is due. When you do your homework.

Due Dec 14, 11:59 PM

11:59 pm by Coolquaza2009 December 20, 2021

May 31st, 11:59 PM 

the moment before disaster, the moment before everyone you know and love will become gay, it is inevitable, fear it at all costs

its May 31st, 11:59 PM, goodbye everyone
*becomes gay*

May 31st, 11:59 PM by i have ligma pls help June 2, 2022

Same day shipping at 11:59pm

The Amazon employee has to speed run the package to your home in one minute. If they don’t succeed they are shipped to Afghanistan to be trained as ISIS members.

Me: (Orders an item on Amazon with same day shipping at 11:59pm)
Cursed Amazon worker: Fuck...

Same day shipping at 11:59pm by Dick Cheeze Demario October 5, 2020

11:59PM 

A teacher's way of saying "midnight" because they want you to turn in your work "TODAY and TODAY ONLY". NO LATE WORK.

Teacher: I want y'all to turn in your essay before 11:59pm or it's a zero.
Jane: why not midnight?
Teacher: Because I want it completed TODAY and TODAY ONLY.

11:59PM by Cire7878 December 3, 2016