I am creating a spreadsheet with a tab for different time zones... to
convert from the eastern time sheet where the times are manually entered, in
the mountain time spreadsheet, I am using the formula:
=IF('Eastern Time'!C3="","",('Eastern Time'!C3)-(TIME(2,,)))
The IF is just to show blanks instead of 12:00 for blanks on the Eastern
time page

This works fine, unless the eastern time is between midnight and 2:00 AM,
when I get a result of ############ in the mountain time. How can I get
around this?