Mains frequency drift is not CUMULATIVE over any given 24 hour period. It is monitored by the power company and compensated for. Otherwise AC electric clocks would be absolutely worthless. Fr. Tom McGahee ----- Original Message ----- From: Vasile Surducan To: Sent: Thursday, February 22, 2001 3:26 AM Subject: Re: [PIC] Timer Tribulations > On Wed, 21 Feb 2001, Tony Nixon wrote: > > > You will find that the clock will drift one way or the other depending > > on temperature, so using the mains as a frequency source is much more > > accurate. > > You are certainly joking ! Or in your country mains frequency drift is > under 0.5% ... > > Vasile > > -- > http://www.piclist.com hint: The list server can filter out subtopics > (like ads or off topics) for you. See http://www.piclist.com/#topics > > -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics