Change time zone offset

I want to change the offset in column D of the Sheet1 tab to the format shown in column G of the TZ tab.  I want to be able to enter + or - values.

It will be less confusing to read and easier to enter that way.
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barry houdiniCommented:
Hello rtod2,

Under Tools menu there is a data validation option. You can set up a list based on a cell range or just list the values within data validation, I did the latter and listed all values from 12 to -12 in increments of 0.5, you can change that as required. I did that for D5 and then copied down, see revised sheet

regards, barry
rtod2Author Commented:
Looks like it messed up the output?
barry houdiniCommented:
No, I don't think so. I just changed some of the entries to demonstrate the range of values that can be picked. I just changed them again to 1s and zeroes but you can obviously pick anything from the list.

regards, barry

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