[LEAPSECS] A standard for leap second smearing

[Tom Van Baak]

> Does it matter that in Seattle the smear occurs at 5:00 in the afternoon, local time,

Richard,

When using local time, it's one step more complicated; in Seattle:
  4:00 PM PST is when a leap second occurs in Winter (e.g., December 31)
  5:00 PM PDT is when a leap second occurs in Summer (e.g., June 30)

/tvb