Time Tag Errors

interval             stn  error
Oct.30-Nov.19, 1991  LEM  Time tag data are 2 hours behind the correct time.
Nov.2-16, 1991       BRV  Time tag data are 1 hour ahead of the correct time.
Nov.24-Dec.7, 1992   BRV  Time tag data are 10 hours ahead of the correct time.
Nov.25-Dec.6, 1993   ADL  Time tag data are 1 hour behind the correct time.
Dec.7,'93-Jan.17,'94 KOT  Time tag data are 2 hours behind the correct time.

Geomagnetic Observation by Magnetometer Network.