Google-sheets – In Google Sheets, how does one get a 12-hour time of day *without* an AM/PM indicator

The new behavior is likely due to an internal change since the last update introducing the new Google Sheets. My suggestion would be to add an intermediary sheet to connect to the commute chart. The new sheet would contain linked values from the Times sheet. You could then perform arithmetic and formatting operations on it while keeping the Times sheet untouched. At the end, you could also hide the supporting sheet.

An example: https://docs.google.com/spreadsheet/ccc?key=0AvNKw_kDnGPQdHVncl9BNkY0cGIteHpjNVZla0RVMVE&usp=sharing#gid=4

The downside is that the time representation you used to achieve on the chart may no longer be possible. In fact, once formatted the duration values become single points in time instead of differences between times.

Look into the following functions: IF and CONCATENATE.

Taking the frequency as an example: you have one cell, B23 in this example, that contains your "raw" number. 2.2 GHz would be entered as 2200000000. Your sheet will be sortable by this column.

Then in C23, put this formula:

=if(B23>=1000000000,B23/1000000000,if(B23>=1000000,B23/1000000,if(B23>=1000,B23/1000,B23)))

In D23, this formula:

=if(B23>=1000000000,"GHz",if(B23>=1000000,"MHz",if(B23>=1000,"kHz","Hz")))

And in E23, this formula, which produces your formatted value:

=concatenate(C23," ",D23)

You don't actually need three cells. You can have just one cell, putting the IF functions in the parameters of the CONCATENATE function:

=concatenate(if(B23>=1000000000,B23/1000000000,if(B23>=1000000,B23/1000000,if(B23>=1000,B23/1000,B23)))," ", if(B23>=1000000000,"GHz",if(B23>=1000000,"MHz",if(B23>=1000,"kHz","Hz"))))

Using three cells just makes it easier to keep things straight, especially the first few times you use nested functions.

For values using binary prefixes (traditionally used for memory sizes), the factors change to 1024, 1024 squared, etc. Note that the prefix for 1000 is lowercase "k" while for 1024 it is uppercase "K"; M and G are always uppercase.