The Preferences link, shown below for both the web and the app, 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.
The timezone is important so potential data checks evaluate the current date/time correctly based on the dates entered by each user.
By default, if preferences are not altered, users will see date fields in DD-MON-YY format and time fields in 24-hour format. Time zones must be set by each users when they sign in for the first time. As of v4.5.4, this is a prompted action on all users who have not ever set their own time zone.
These preferences are remembered for each user, regardless of where they login in the future.
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.
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.
The data export files will have two columns of data:
1) Record Date column which is system generated and will reflect the server time data was entered in the server time zone.
2) Time Field(s) 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.
Note: The time preference settings have no impact on how data is actually stored.