Need help: convert seconds to date and time

M

misty1

Need help converting cell contents from seconds to a date and time.
File was exported from Active Directory into a CSV file. Other date
fields display date and time, i.e. 20041029043416.0Z. All of the cells
in the column for last logon displays an exponential number i.e.
1.27771E+17. When this cell is accessed with mouse or when copied and
pasted, 127770982728624000 is displayed. After searching the Internet
on converting seconds to date, I found this formula but am not sure how
to use it on the cells in the column for last logon.
Set cell format to:
Date, type = y/m/yy hh:mm
Set cell function to:
=unixdatetime /(60*60*24)+DATE(1970,1,1)
This will retun date and time

I would appreciate a step by step process on how to convert seconds to
date and time using the example: 127770982728624000.
Thanks in advance for your assistance.
 
E

Earl Kiosterud

Misty,

127770982728624000 seems too big a number for a Unix date-time value.
Today's date is 1132876800. It's the count of seconds since 1/1/1970,
right?

Earl Kiosterud
www.smokeylake.com
 
M

misty1

Hi, I tried to reply to your reply regarding the conversion of second
to date and time and although I had signed in, I could not get th
screen where I could reply to your questions so I found your e-mai
address at www.smokeylake.com

I am not sure what the number means except that it is supposed to be
date and time that occurred in November, 2005 and the cell contents ar
under a field called lastlogon. I am trying to convert this to a dat
and time so that it can be easily determined when a person last logge
into his/her account in AD. The file was exported from Activ
Directory into a CSV file. This number still shows the same in bot
the text file (in Notepad) and the csv file (in Excel)
 
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