[tz] [PROPOSED PATCH] Fix 1948-1966 transitions for Los Angeles

Paul Eggert eggert at cs.ucla.edu
Sat Aug 20 17:27:30 UTC 2016

Steve Allen wrote:
> and a Jan 2 article down from the SF Chronicle blamed Warren for
> the Cal Bears losing the Rose Bowl to Northwestern.

Warren sure was responsible for a lot! Anyway, thanks for checking; as it 
happens I found a way through the paywall myself and had checked it 
independently before seeing your email. I installed the attached further patch.

A bit off topic, but I particularly like PG&E running electric clocks at 59.5/60 
speed during the day, while continuing to run them full speed at night. I assume 
they didn't have to shut down the power grid to switch frequencies. Perhaps they 
smoothed the second derivative during the twice-daily transitions, as Google 
does with its smeared leap seconds nowadays?

As I write this the power line frequency in Los Angeles is about 59.98 Hz, but 
over the day it should average out to 60 Hz due to time error correction. If 
California wanted to switch to 59.5 Hz today, I assume that it'd be a bigger 
deal than it was back in 1948.
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