Currently the eReview PDF time stamp uses the system time for its timestamp.
If there are two reviewers for a eReview packet, one in some X location and other in Phoenix and the reviewer in "X" reviews the packet first on a particular day evening and reviewer in Phoenix reviews the packet in their same day morning then the timestamp shows that Review in Phoenix is done first and "X" is done later.
The same is the case for comments from authors and the reviewers if both are different location.
So I think this time stamp looks inconsistent and does not give the desired information.
so its taking system by default,how to change it from system time to UTC time zone