1. Open the entry and find the section displaying created and modified dates within the entry header.
  2. Click the pencil icon at the top-right corner of that section, or merely double click the section.
  3. Enter a name or select one from the dropdown list in the bottom left cell written Custom date. The names in the dropdown list will be filtered while entering letters.
  4. Click on the cell to the right and select a date from the suggesting calendar.
  5. Confirm your changes by clicking save, or discard them by cancel.