Google-sheets – Calculating Time Zones in different columns

Ok, I think I've figured it out. Not straightforward, but now that it's done, not terribly difficult.

**=VLOOKUP(D1,'TARGET_SHEET'|A:B,2)**

Some explanations about why I couldn't get the answer.

• Criterion (the D1 here) does not need to be a string. It can be a cell reference.
• A1 notation for cells can be used to refer to complete columns (did not know that). So A:B is perfect syntax in A1 notation. http://msdn.microsoft.com/en-us/library/office/bb211395%28v=office.12%29.aspx
• The array by definition needs to be 2 or more columns. (duh!) The value for the index parameter will likely be "2" (for a two column array). If the array had 3 columns, more than likely the value would be 2 or 3.
• You can auto-increment the values for this vlookup formula by grabbing the handlebars and pushing them down on the result column. So: in the cell immediately below the one with the formula, you will see =VLOOKUP(D2,'TARGET_SHEET'|A:B,2)

See if this helps ?

function onEdit(e) {
var s = e.source.getActiveSheet(),
    watchCols = [2, 5],
    offsetCol = [8, 10],
    ind = watchCols.indexOf(e.range.columnStart)
    if (s.getName() !== "Sheet1" || ind === -1) return;
e.range.offset(0, offsetCol[ind])
    .setValue(!e.value ? null : Utilities.formatDate(new Date(), "GMT", "hh:mm"))
}