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- Go to the Moodle course with the dates you need to update.
- Click on the Actions tool in the upper right corner
and select "More" from the bottom of the list. - Under the Reports section, click on the Dates link.
- Select the Activity type (typically Assignment)
- Click Expand all in the upper right corner.
- Update all your dates.
- Click Save Changes when you have made all of your changes to the Activity type currently selected.
- Then you can continue on to any other activity type in which you would like to change dates.