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Re: Time calculations ?

by JE McGimpsey <jemcgimpsey@[EMAIL PROTECTED] > May 11, 2008 at 03:57 PM

In article <OQXhlH2sIHA.5872@[EMAIL PROTECTED]
>, bubba@[EMAIL PROTECTED]
 
wrote:

> Thanks for any help you can give me on this.<br>

First, it's much more polite to post in plain text...

Second, XL stores times as fractional days, so one minute corresponds to 
1/(24*60) = 1/1440. 

One way (format all cells as times, if necessary):

C1:      =A1
D1:      =A1 + B1/1440

C2:      =D1
D2:      =C2 + B2/1440

Copy C2:D2 down as far as required.

Note: If your times span midnight, XL will, if the cells are displayed 
as times, "roll over" the display - i.e., 1.25 displays as 6:00 AM. If 
you want to roll over the *value* (i.e., 11:00 PM + 240 minutes = 0.125 
rather than 1.125):

C1:      =A1
D1:      =MOD(A1 + B1/1440, 1)

C2:      =D1
D2:      =MOD(C2 + B2/1440, 1)
 




 3 Posts in Topic:
Time calculations ?
bubba@[EMAIL PROTECTED]   2008-05-11 08:24:00 
Re: Time calculations ?
JE McGimpsey <jemcgimp  2008-05-11 15:57:55 
Re: Time calculations ?
bubba@[EMAIL PROTECTED]   2008-05-12 07:43:01 

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