Time Tag Errors

interval             stn  error
Mar.9-28, 1996       ADL  Time tag data are 1 day ahead the correct time.
Feb.15-Mar.7, 1997   ONW  Time tag data are 1 day behind the correct time.
Feb.28, 1997         BIK  Time tag data are 1 hour behind the correct time.
Mar.5-12, 1997       YAP  Time tag data are incorrect.
May 22-29, 1997      YAP  Time tag data are incorrect.

Geomagnetic Observation by Magnetometer Network.