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Archived - Mac OS 9: How to Set Date and Time to ISO 8601:1988 Standard

This article explains how to set Mac OS 9's Date & Time control panel to use the ISO 8601:1988 date and time notation standard.
This article has been archived and is no longer updated by Apple.
Follow these steps to set Mac OS 9's Date & Time control panel to use the ISO 8601:1988 date and time notation standard.

    1. Open the Date & Time control panel.

    2. Click Date Formats. The Date Formats window appears.

    3. In the Long Date area, set the pop-up menus to this order:

    • Weekday
    • Day
    • Month
    • Year

    4. Delete the comma in the field next to the Month pop-up menu.

    5. Click the checkbox to enable "Leading zero for day".

    6. In the Short Date area, choose Year/Month/Day from the pop-up menu.

    7. Type a hypen in the Separator field.

    8. Click the checkboxes to enable "Leading zero for day", "Leading zero for month", and "Show century".

    When you have finished these steps, your settings should look like those in Figure 1.



    Figure 1 Date Formats window

    9. Click OK.

    10. Click Time Formats. The Time Formats window appears.

    11. Click 24 hour.

    12. Click the checkbox to enable "Use leading zero for hour".

    When you have finished these steps, your settings should look like those in Figure 2.



    Figure 2 Time Formats window

    13. Click OK.

    14. Close the Date & Time control panel.


More information

For more information on the ISO 8601:1988 standard, Open Sherlock 2 and search for ISO 8601.

Last Modified: Feb 20, 2012
  • Last Modified: Feb 20, 2012
  • Article: TA26390
  • Views:

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