[tz] An outline of a possible solution for sensible leap-second support.

Paul Eggert eggert at cs.ucla.edu
Mon Feb 16 17:17:24 UTC 2015


Paul Ganssle wrote:
> Have there actually been any time zones that are not an even multiple of a
> whole minute since the advent of leap seconds?

Yes, some locations not in the tz database still use times that are not a 
multiple of a whole minute.  One example is the Vatopedi monastery on Mt Athos. 
  You can see Wim Voogd's 2013 photo of the Vatopedi clock, which still keeps 
Byzantine time, here:

https://athosweblog.files.wordpress.com/2014/04/dscn2077-large.jpg

Not much has changed since Harry Griswold Dwight's circa-1915 photograph:

http://www.natgeocreative.com/comp/IR18/199/603213.jpg

The tz code and data as currently constituted cannot feasibly represent 
Byzantine time.



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