I would start with verifying the system values QTIMZON and QUTCOFFSET for your time zone.
You also want to check the time on your as/400
Question – is there a pattern to the error — examples might help.
I have the same problem. PC & AS400 times match. I just sent an email @ 4:11pm and on Outlook the time sent is 5:11pm but the received time is 4:11pm.
What is QTIME on your 400?
Are you traveling faster than the speed of light?
Check out the first response .. you need to check the 400′s time and time zone
against your pc’s time and time zone.
Outlook adjusts the sent time based on the receiving systems time zone.
So your pc thinks it’s one time zone west er east oh .. I have a headache.