Excel negative time formula :: MrExcel Message Board


 FAQFAQ
   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   FavoritesFavorites   StatisticsStatistics 
 RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
Online StoreOnline Store

MrExcel Message Board Forum Index -> Excel Questions

negative time formula
Post new topic   Reply to topic
Last Thread | Next Thread  >   Printable version
  Author    Thread

51lky
Welcome to the Board


Joined: 05 May 2002
Posts: 1


Status: Offline

 Reply with quote  

i am trying to get a negative time formula but cannot achieve it

for example
column a b c
10:00 - 12:00 = -2:00(red )

any help please would be appreciated

[ This Message was edited by: 51lky on 2002-05-06 08:56 ]

Post Sun May 05, 2002 5:21 pm 
 View user's profile Send private message ICQ Number

Aladin Akyurek
.


Joined: 15 Feb 2002
Posts: 13436
Location: The Hague
Flag: Blank

Status: Offline

 Reply with quote  

Switch to the 1904 date system thru Tools|Options...

Post Sun May 05, 2002 5:25 pm 
 View user's profile Send private message

Chris Davison
MrExcel MVP


Joined: 16 Feb 2002
Posts: 1715
Location: Millbank, London, UK

Status: Offline

 Reply with quote  

What was significant about January 2nd 1904 to make it an alternative date system ?

Post Sun May 05, 2002 5:33 pm 
 View user's profile Send private message Send e-mail ICQ Number

Nimrod
MrExcel MVP


Joined: 30 Apr 2002
Posts: 2511
Location: Vancouver BC , Canada

Status: Offline

 Reply with quote  

It has to do with backward compatability with previous systems. The 1904 system was designed to be compliant with MAC systems.
Dates before 1904 were not supported on MAC systems. I believe MAC wanted to avoid the fact that there is a missed leap year previous to 1904 i.e. 1900.

[ This Message was edited by: Nimrod on 2002-05-05 13:57 ]

Post Sun May 05, 2002 5:57 pm 
 View user's profile Send private message AIM Address

Aladin Akyurek
.


Joined: 15 Feb 2002
Posts: 13436
Location: The Hague
Flag: Blank

Status: Offline

 Reply with quote  


quote:

On 2002-05-05 13:57, Nimrod wrote:
It has to do with backward compatability with previous systems. The 1904 system was designed to be compliant with MAC systems.
Dates before 1904 were not supported on MAC systems. I believe MAC wanted to avoid the fact that there is a missed leap year previous to 1904 i.e. 1900.

[ This Message was edited by: Nimrod on 2002-05-05 13:57 ]



That's right. & Excel was written first for Mac and the programmers avoided that Lotus 1-2-3 date glitch.

Post Sun May 05, 2002 6:17 pm 
 View user's profile Send private message

Chris Davison
MrExcel MVP


Joined: 16 Feb 2002
Posts: 1715
Location: Millbank, London, UK

Status: Offline

 Reply with quote  

thanks guys

(I should have figured that out.... shame on me!)

icon_smile.gif

Post Sun May 05, 2002 7:14 pm 
 View user's profile Send private message Send e-mail ICQ Number
  Display posts from previous:      

MrExcel Message Board Forum Index -> Excel Questions


Forum Jump:
Jump to:  

Post new topic   Reply to topic
Page 1 of 1



Add To Favorites

 


Forum Rules:
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

Powered by phpBB: 2.0.4 © 2001 phpBB Group

Need help posting your first question? Read how to post

Need extra help ? Couldn't get the answer you needed ? Get a free quote from our Consulting Team

Download Colo's HTML Maker utility for displaying your Excel Worksheet on the board.

Download VB HTML Maker to post your code on the board


Check out our new index to 485 Excel Articles.


Return to MrExcel Consulting

All contents Copyright 1998-2004 by MrExcel.com
If you believe information posted here is from your copyrighted source, notify us per the Terms of Use
Excel is a registered trademark of the Microsoft Corporation.
MrExcel is a registered trademark of Tickling Keys, Inc.