[LEAPSECS] BBC radio Crowd Science

[Steve Summit]

Tom Van Baak and Michael Decker wrote:
>>> 2017-01-01T00:00:36.5 - 36 s = 2016-12-31T23:59:60.5
>> What kind of arithmetic is that?

I think it ends up being roughly the same kind of arithmetic
that tells you that the 60th day of the year is March 1.
Or maybe February 29.

[in a later message]
> I do have problems with your notation. [...] If your first
> equation was A = B, then you are now saying A - 36 s = B.

Two totally different uses of "=".  One means "at the same
point in time"; one means "have the same numerical value".
Sort of like 100 degrees Celsius = 212 degrees Fahrenheit,
but 100 * 9 / 5 + 32 = 212.