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Define custom date format per institute

Flexible date formats gives users the possibility to define, per each available study institute, the preferred date format to be used and displayed within data entry.

To define custom date format, follow the steps below:

  1. Navigate to the Settings -> Study tab

  2. Click on the Manage institutes button. In the ‘Manage Institutes’ modal, you can view and choose to update the selected date format.

  3. Click on the cogwheel icon next to an institute where the date format should be customized.


A list of nine (9) different formats is available, from which you can select one for each institute:

  • YYYY-MM-DD (ISO)
  • DD-MM-YYYY
  • MM/DD/YYYY
  • DD/MM/YYYY
  • Month, DD, YYYY
  • DD Month YYYY
  • DD-MMM-YYYY
  • YYYYMMMDD

For all studies created after the release of the 2021.5 version on 11 October 2021, the default date format will be the standard ISO format, while for running studies the default will remain with the previous format that was available before EDC version 2021.5.

Depending on the institute date format, the view in data entry for each record will reflect that on all relevant field types: Date, Date and Time, Date and Number.

Note: dates are currently stored internally as DD-MM-YYYY and will also be displayed as DD-MM-YYYY when exported. 

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  1. Castor Support Team

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