[LEAPSECS] Bulletin C and all that

[G Ashton]

ISO 8601 defines for its purposes midnight as the start of the new day (and
end of the old day). But that does mean that since 1582 everyone who uses or
used the Gregorian calendar as their civil calendar has/had also used
midnight to divide days. Such usages may have exist, they just would not be
ISO 8601 compliant. 

Gerard Ashton

----------

Brooks Harris wrote in part:
Sent: Sunday, January 25, 2015 23:29
To: leapsecs at leapsecond.com
Subject: Re: [LEAPSECS] Bulletin C and all that
.
.
.
8601, 3.2.1 The Gregorian calendar, says:
"This International Standard uses the Gregorian calendar for the
identification of calendar days."

Earlier, it says:
2.2.6 calendar day - "time interval starting at midnight and ending at the
next midnight, the latter being also the starting instant of the next
calendar day"

8601 is more carefully constructed than you give it credit for, and its an
international standard. "Difficult" yes. "Garbage", certainly not.

-Brooks


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