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RFC 3339, "Date and Time on the Internet: Timestamps", July 2002

Source of RFC: impp (app)

Errata ID: 293
Status: Verified
Type: Editorial
Publication Format(s) : TEXT

Reported By: Tony Finch
Date Reported: 2005-05-26

Section 5.1 says:

   The presence of optional punctuation would violate this characteristic.

It should say:

   If the format allows optional punctuation or white space then this 
   characteristic can be violated.

Notes:

In Appendix A, it says:
Time:

time-hour = 2DIGIT ; 00-24
time-minute = 2DIGIT ; 00-59
time-second = 2DIGIT ; 00-58, 00-59, 00-60 based on
; leap-second rules
time-fraction = ("," / ".") 1*DIGIT
time-numoffset = ("+" / "-") time-hour [[":"] time-minute]
time-zone = "Z" / time-numoffset

timeopt-hour = "-" / (time-hour [":"])
timeopt-minute = "-" / (time-minute [":"])

timespec-hour = time-hour [[":"] time-minute [[":"] time-second]]
timespec-minute = timeopt-hour time-minute [[":"] time-second]
timespec-second = "-" timeopt-minute time-second
timespec-base = timespec-hour / timespec-minute / timespec-second

time = timespec-base [time-fraction] [time-zone]

iso-date-time = date "T" time
It should say:
Time:

time-hour = 2DIGIT ; 00-23
time-minute = 2DIGIT ; 00-59
time-second = 2DIGIT ; 00-58, 00-59, 00-60 based on
; leap-second rules
time-fraction = ("," / ".") 1*DIGIT
time-numoffset = ("+" / "-") time-hour [[":"] time-minute]
time-zone = "Z" / time-numoffset

timeopt-hour = "-" / (time-hour [":"])
timeopt-minute = "-" / (time-minute [":"])

timespec-hour = time-hour [[":"] time-minute [[":"] time-second]]
timespec-minute = timeopt-hour time-minute [[":"] time-second]
timespec-second = "-" timeopt-minute time-second
timespec-base = timespec-hour / timespec-minute / timespec-second
/ timespec-midnight
timespec-midnight = "24" [[":"] "00" [[":"] "00"]]

time = timespec-base [time-fraction] [time-zone]

iso-date-time = date "T" time

In the third paragraph of Appendix A, it states "ISO 8601 is not clear on
whether an hour of 24 is permissible only if minutes and seconds are 0.
This assumes that an hour of 24 is permissible in any context."

This is clarified in the 2000 edition which says:
5.3 Time of the day

The representation of the hour by [24] is only allowed to indicate
midnight, see 5.3.2.
That would result in the following ABNF change:
time-hour = 2DIGIT ; 00-23
and additions:
timespec-midnight = "24" [[":"] "00" [[":"] "00"]]
timespec-base =/ timespec-midnight

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