Symptoms
When a Microsoft Exchange Server 2013 administrator creates a transport rule that uses the ActivationDate or ExpiryDate option, the Exchange Admin Center (EAC) should display the time as UTC. However, the time that is displayed is the local time of the client computer that runs the web browser and not UTC.
For example, even if you create a transport rule by specifying ActivationDate in UTC time explicitly as in the following transport rule, you do not see this time displayed in the EAC:
new-transportrule TEST2 -subjectcontainswords "test" -RejectMessageEnhancedStatusCode "5.7.1" -RejectMessageReasonText "test" -activationdate "8/16/2014 9:00 +0:00"
Resolution
To resolve this issue, install Cumulative Update 9 for Exchange Server 2013.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.