Tom’s Tutorials For Excel: Rounding Times of Day by the Quarter Hour

Tom’s Tutorials For Excel: Rounding Times of Day by the Quarter Hour

Here are three pictures to show how a time of day can be rounded…
• To its nearest quarter-hour.
• Up, to its next quarter-hour.
• Down, to its last quarter-hour.

Picture #1 – Rounding a time to its nearest quarter-hour.
The formulas in range E3:F20 round their respective times in range B3:C20.
The formula in cell E3, which is copied across and down to cell F20 is
=ROUND(B3*96,0)/96


Picture #2 – Rounding a time up to its next quarter-hour.
The formulas in range E3:F20 round their respective times in range B3:C20.
The formula in cell E3, which is copied across and down to cell F20 is
=CEILING(B3,0.5/48)


Picture #3 – Rounding a time down to its last quarter-hour.
The formulas in range E3:F20 round their respective times in range B3:C20.
The formula in cell E3, which is copied across and down to cell F20 is
=FLOOR(B3,0.5/48)

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