NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Time
From: Nigel Gardner
Date: 2000 Nov 11, 2:14 AM
From: Nigel Gardner
Date: 2000 Nov 11, 2:14 AM
I should have added to my previous note that ship's time is usually the zone time of the vessel's longitude and used for domestic and watchkeeping purposes on board. Watch time is the time the watch read which might not be the same as GMT if the watch ran fast or slow. When I started my navigation for example, the chronometer watch had to be rated by comparing its time with GMT over perhaps a fortnight to find what was called 'its going' it did not matter really if it ran fast or slow so long as the rate of change was constant. Knowing the rate of change the watch time could then be corrected to GMT. How many of you out there who shun electronic navaids are relying on electronic assistance for your timekeeping? NG
