The Preferences link allows users to set Date, Time and Time Zone Format preferences for data entry. This will affect what users individually see on their own screens for date and time fields throughout the system. Regardless of what users set on time format preference, the database will always store dates and times in standard binary format, UTC -5 (US Central Time based on primary server location),  so study data will be consistent regardless of each user's preferences. The time zone is important so potential data checks evaluate the data correctly based on the dates entered by each user around the globe.



By default, if preferences are not altered, users will see date fields in DD-MON-YY format and time fields in 24-hour format.

 

When the  PREF link is clicked at the top right of the screen, the following popup window appears: 


 

Date Format

The date format chosen will determine how dates are displayed and completed in the fields in forms that require dates. This is a matter of preference and allows the user to choose between various date formats from the dropdown list. The date entry field will prompt the user in the format selected when data is entered. Regardless of the format chosen, the system stores dates in a standard format and then converts the dates to the user’s preference prior to display.

 

Click the dropdown, select the desired date format to display.

Time Format

The time format chosen will determine how time is displayed and completed in forms that require times. Similarly, this is a matter of preference and allows the user to choose between various time formats from the dropdown list. The time entry field will prompt the user in the format selected when data is entered. Again, regardless of the format chosen, times will be stored in a standard format and converted to user preference prior to display.

 

Click the dropdown, select the desired time format to display.

Time Zone

The system stores all dates and times using a fixed time zone reference:Central Time (USA and Canada).  Central Time will be reflected on all the audit trails.  Unless you change your own settings the default will be Central Time Zone.

The data extraction files we have two columns of data:

1) Record Date column which is system generated and will reflect the server time data was entered in Central Time (USA and Canada).  
2) Time Field from eCRF that was entered by data entry users.  This is the time field data entry was put in by the data coordinators.  Then, when the date and time is retrieved from the system, they are displayed in the user’s time zone as entered.  

The time preferences and changing time preference have no impact on how data is stored.


 


The scroll bar can be used to navigate to the desired time zone. Use the mouse to click the desired selection from the dropdown to select the time zone.