8.2.2 Custom time format

Org mode uses the standard ISO notation for dates and times as it is defined in ISO 8601. If you cannot get used to this and require another representation of date and time to keep you happy, you can get it by customizing the variables org-display-custom-times and org-time-stamp-custom-formats.

C-c C-x C-t (org-toggle-time-stamp-overlays)

Toggle the display of custom formats for dates and times.

Org mode needs the default format for scanning, so the custom date/time format does not replace the default format. Instead, it is put over the default format using text properties. This has the following consequences: