On Monday, August 24, 2015 at 7:00:18 PM UTC-4, Alistair Green wrote:
I have updated the IGC viewer app to fix the date bug.

This problem only affected users whose system clock was set to a time zone
with a negative offset from UTC. The flight date was read from the file as
UTC, but implicitly converted to local time when displayed.

The date is now always shown as UTC; a side effect is that the time of the
first position fix is also included.

Thanks to Alistair from those of us with negative offsets!