ProductionDateService PAPI confusion on Timestamps/Timezones

Hi,

we are currently trying to utilize the ProductionDateService: findProductionShiftsForDate PAPI to fetch the current Shift,

however there is some confusion with the Timestamps we get back as a result.

We have a Production Shift configured which starts 06:00 in the morning and ends 16:30 in the afternoon.

System and Site Timezone is set to Los Angeles.

Now if we call the PAPI with the Parameter 6:00:00 AM and America/Los_Angeles,

it returns the correct shift, but the Timestamps returned are the following:

<ns2:startDateTime>2015-05-29T03:00:00.000-07:00</ns2:startDateTime>

<ns2:endDateTime>2015-05-29T13:30:00.000-07:00</ns2:endDateTime>

The Time Offset of -7 between GMT and PDT is correct, however the timestamps are off by 3hours.

Could somebody elaborate where this behavior comes from?

For me it looks like a problem when actually storing the Production Shifts.