A user of our app recently noticed that date/time fields were causing problem when a record was updated.  When a user clicks "Submit", the app pops up a warning claiming that "Invalid entries found.  Please correct and submit again.".  At this point the app focuses on one of the date/time fields and shows an error message that reads, "Enter a valid date format for date/start time."

The date has not changed for this field, and the format has not changed either.  This only happens on iPhone - desktop browsers, Android phones and an iPad do not exhibit this issue (though the iPad is older and has not been updated in a while.)

In addition to this error, I noticed that the date/time values in question are being changed to be 2 hours earlier when the record is edited.  The date value is correct when viewing the record, but changes upon editing the same record.  There is nothing in our application that would be changing this value, so I am at a loss.  This also only appears to happen on iPhones.

I'm searching for a workaround - any ideas?  This appears to be related to a recent update to the app or iOs.  

Thanks in advance!