Converting unix timestamp to excel date-time...

dhcrusoe

New Member
Joined
Jan 10, 2005
Messages
11
Hey all,

This is a relatively simple problem, I think, but it's driving me crazy. I'm analyzing 13.8 million rows of data (participant observation in an educational MUVE) and need to convert the unix timestamp to a date/time.

I know that, for example:

Unix stamp: 1096405159
converts to: Thu 10/07/04 sometime around 9.00 am...

but my formula:

=(F2+((365*70+19)*86400))/86400-0.41667 isn't working right... any suggestions?

Thanks!

--dave
 

Excel Facts

What is the fastest way to copy a formula?
If A2:A50000 contain data. Enter a formula in B2. Select B2. Double-click the Fill Handle and Excel will shoot the formula down to B50000.
Yes, that's perfect if you live on the Greenwich Mean Time Line...

To add GMT offset, timezone is required in the formula:
=(D17591 + ("1/1/1970"-"1/1/1900"+1)*86400 +36000) / 86400
=(M$_XL_Cell_Value + ("1/1/1970"-"1/1/1900"+1)*86400 + GMT_Offset) / 86400
36000 = GMT+10
Aussie Aussie Aussie, Oi Oi Oi!
:laugh:


I'm in Brisbane (GMT+10) I'm having to use the following formula to get accurate dates and times with data exported from GO SMS Pro

Epoch Date in cell D2 = 1431242184520

Formula in F2: =(D2/1000)/86400+25569+0.416666666667 - Gives the result 42134.7197282407

To convert to Readable date and time, 2 columns

=TEXT($F2,"dd/mm/yyyy") = 10/05/2015

=TEXT($F2,"hh:mm:ss") = 17:16:25

These dates and times are correct when I compare them to the SMS app on my phone.

However:

When I use the formula you describe, e.g. =(D2+("1/1/1970"-"1/1/1900"+1)*86400+36000)/86400 I get the result of 16590872.4782407... nowhere near the 42134.7197282407 I require.

I probably just don't understand your formula, but it would be nice to know what's going on.

Cheers,

Ticcer
 
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