Re: Timestamps, yet again

From
Jordan, Bret <>
Date
2016-01-18T15:57:47+00:00
ID
Thread
Re: Timestamps, yet again
Thoughts???  We really need to decide this.  This along with IDs are the next major things we need to resolve and resolve SOON.  

Thanks,

Bret

Bret Jordan CISSP
Director of Security Architecture and Standards | Office of the CTO

Blue Coat Systems

PGP Fingerprint: 63B4 FC53 680A 6B7D 1447  F2C0 74F8 ACAE 7415 0050

"Without cryptography vihv vivc ce xhrnrw, however, the only thing that can not be unscrambled is an egg." 

On Jan 14, 2016, at 22:19, Jordan, Bret <> wrote:

As this issue was brought up at the Face2Face, and thus reopened for debate and consensus, and the consensus today was leaning toward the use of RFC3339 as is, without further stipulation and the removal of timestamp_precision field, I thought it would be best to re-read the RFC for clarification.  

Section 4.2. Local Offsets

Allows for local time, so long as it is an offset from UTC

5.8. Examples

1996-12-19T16:39:57-08:00

I do not see anything in RFC3339 that allows for dates/times with less precision than a fully qualified timestamp:  yyyymmddThh:mm:ssZ

ISO8601 does explicitly allow for reduced precision by just truncating the value.

From my understanding of the community we have the following requirements:

1) Represent reduced precision

	2015Z

	201501Z

	20150114Z

	20150114T23Z

	20150114T23:21Z

	20150114T23:21:20Z

	20150114T23:21:20.1Z

	20150114T23:21:20.12Z

	20150114T23:21:20.123Z

	etc.

2) Represent an arbitrary number of fractional sections

	20150114T23:21:20.1Z

	20150114T23:21:20.12Z

	20150114T23:21:20.123Z

	etc.

3) Represent values in local time as a offset to UTC or in UTC 

	20150114T23:21:20.123456Z

	20150114T23:21:20.123456-08:00

Thanks,

Bret

Bret Jordan CISSP
Director of Security Architecture and Standards | Office of the CTO

Blue Coat Systems

PGP Fingerprint: 63B4 FC53 680A 6B7D 1447  F2C0 74F8 ACAE 7415 0050

"Without cryptography vihv vivc ce xhrnrw, however, the only thing that can not be unscrambled is an egg." 

Attachment:
signature.asc

Description: Message signed with OpenPGP using GPGMail