jgray at zianet.com said: > I turned off all sentences except RMC. It is still showing about 2s behind > UTC. This model was made in the mid 90's. How many leap seconds have we had > since? Dec 2008 Dec 2005 Dec 1998 Jun 1997 Dec 1995 Jun 1994 Jun 1994 Jun 1992 Dec 1990