1 To make the date/time appear, type the date in the Fixed box or click Update automatically to set up an automatic date/time on each slide. 2  Click the drop down menu to select the desired date/time format. 3  Click Apply to All to apply the footers and placeholders to all slides. To make the date/time appear, type the date in the Fixed box or click Update automatically to set up an automatic date/time on each slide. 2  Click the drop down menu to select the desired date/time format. 3  Click Apply to All to apply the footers and placeholders to all slides.