When I read things like this I wonder what the accuracy is compared to, the clock will not gain or lose the relative to what? The physics you tubes I watch tell me there is no absolute time and that time varies with motion, acceleration and gravity.

Fire information - Watch Duty - website and downloadable app for info.

Interview with the founder at:

13,17,18
Last time I checked Hawaii was on permanent daylight time. If they had their clocks set by their longitude they would be 1 hour later