Please check your column-A data which is not real timing. Some of them are real times and some of them are text Numbers. (Never Align (Left, Right, Ceter) numbers especially when it is involved in calculation. Because, we forget to notice whether it is real number or text data). To convert the Column-A data to real number in one shot – Select the Column-A and Press Alt+D+E>>Next>>Next>>Fininsh and apply the below formula.
In F2 cell – Array Formula – Should be entered with Ctrl+Shift+Enter
Drag it down.
Hope this helps!
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