[Metadata] 6A2019 problem with station starttime

[jschaeff]

Hello,

I found problems in starttime of stations HYP02, HYP03 and HYP04 :

<FDSNStationXML xmlns="http://www.fdsn.org/xml/station/1" schemaVersion="1.1">
  <Source>EIDA-Federator</Source>
  <Sender>EIDA</Sender>
  <Created>2023-04-04T14:52:02.192913</Created>
  <Network xmlns="http://www.fdsn.org/xml/station/1" code="6A" startDate="2019-05-14T06:00:00" endDate="2019-05-14T22:00:00" restrictedStatus="open">
    <Description>Acoustic Ground Coupling Experiment, University of Vienna</Description>
    <Station code="HYP02" startDate="1980-01-01T00:00:00">
      <Latitude>47.926987</Latitude>
      <Longitude>15.858381</Longitude>
      <Elevation>1045</Elevation>
      <Site>
        <Name>Hyperion IFS-5111 infrasound sensor, seismically decoupled + Reftek 130-01 datalogger</Name>
        <Country>Austria</Country>
      </Site>
      <CreationDate>1980-01-01T00:00:00</CreationDate>
    </Station>
  </Network>
</FDSNStationXML>