[LEAPSECS] Leap Seconds schedule prior to 1972

[Steve Allen]

On Sat 2016-04-23T21:44:42 +0800, Sanjeev Gupta hath writ:
> How far back do we have to go before we have multiple leap seconds *per
> day* ?

Somewhere around 40000 to 60000 years.

Keep in mind that chronometers with escapements capable of that kind
of precision per day did not exist 400 years ago, so the notion of
second had a contemporary meaning which was much more figurative
than precise.

--
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