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Apply time format

Windows shortcut 
CtrlShift@
Mac shortcut 
@

This shortcut will apply a default Time format to selected cells.

Excel offers many types of number formatting.

Related videos

The videos below demonstrate this shortcut.
In this video, we'll look at how to generate a sequence of times with the SEQUENCE function.
In this lesson, we cover shortcuts you can use to apply key Excel number formats: General, Number, Currency, Date, Time, and Percentage.