Assuming starting in A2

=A2+7/24 or =A2+TIME(7,0,0)

in A3

=A2+15/24 or =A3+TIME(15,0,0)



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HTH

RP
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"john" wrote in message
...
what i need to do is to set a spreadsheet that 1 column is in central
standard time, then the cell below needs it to add 7 hours then the cell
below that needs to add 15 hours from the first cell.....how do i do that?