Can date and time-stamping be altered by changing the user's preferences?

Date and time-stamping are essential components of GLP compliance to ensure that the file was actually created on the specified date. To avoid the possibility of individual’s altering their computer time-clock, the System Administrator should configure the settings of each user computer and then prevent users from gaining access to this facility.


When signing a LabChart data file, the client computer sends the current time to the GLP Server to check for synchronization. If there is a discrepancy of greater than 60 seconds between the client and server computer clocks, the signing process fails.


For further technical assistance with this or any other issue, please contact ADInstruments Technical Support by clicking HERE.