Re: [tz] Buggy %z behaviour in strftime

Paul Gilmartin via tz <tz@iana.org> writes:

It may be worse. I read somewhere (citation needed) that in SMTP Date: headers a signed value indicates a geographic longitude; unsigned 0000 merely UTC with location unspecified.

RFC 2822 section 3.3: The form "+0000" SHOULD be used to indicate a time zone at Universal Time. Though "-0000" also indicates Universal Time, it is used to indicate that the time was generated on a system that may be in a local time zone other than Universal Time and therefore indicates that the date-time contains no information about the local time zone. -- Russ Allbery (eagle@eyrie.org) <https://www.eyrie.org/~eagle/>