## How to group time by minutes or hours intervals in Excel?

Here is a list of time, and what I want to do is to group time by 3 hours as below screenshot shown, how can I quickly solve it in Excel?

Group time by hours intervals

Group time by minutes intervals

#### Group time by hours intervals

To group time by hours interval, you just need one formula.

Select a cell next to the time, and type this formula =FLOOR(A2,"3:00"), A2 is the time you use, 3:00 is the hours interval, press Enter key and drag fill handle down to apply this formula to cells.

#### Group time by minutes intervals

If you want to group time by minutes intervals, also can use formulas.

Select a cell next to the time, and type this formula =FLOOR(A2,TIME(0,15,0)), A2 is the time you use, 15 is the minutes interval, press Enter key and drag fill handle down to apply this formula to cells.

Tip: if the formula results are displayed as digits, just need to format them as time format.

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