I've never seen this issue before and hopefully this might help someone else. I ran into this error after trying to setup my s3 settings.

There was an error in your S3 account information:
RequestTimeTooSkewed: The difference between the request time and the current time is too large.

I found that the error is related to the server having an incorrect system time.
http://www.visible-form.com/blog/amazon-s3-requesttimetooskewed-error/

Here are some instructions for updating the system time via SSH using ntpdate
http://help.ovh.com/TimeServer

And here is a list of timeservers you can sync with
http://www.elpromaelectronics.com:8081/ntpdb.php

Problem solved after running

usr/sbin/ntpdate time.nist.gov