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Re: Value of a date in Numbers
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Re: Value of a date in Numbers


  • Subject: Re: Value of a date in Numbers
  • From: Luther Fuller <email@hidden>
  • Date: Wed, 04 Feb 2009 09:32:15 -0600

On Feb 4, 2009, at 8:03 AM, Mark J. Reed wrote:

ISO 8601.  Seriously - it's 2009, you can afford to use 14 to 76 bytes
to store a timestamp.

In any case, Unix timestamps are always unambiguous - well, except for
1-second uncertainties around leap seconds - because they are stored
as a single integer value representing the number of (non-leap)
seconds since 1 January 1970 at midnight GMT. There is no such thing
as a "local timestamp", just the local vs utc representation of a
single unambiguous time value.  So any archive format or filesystem
that uses such timestamps is also unambiguous in that regard.

So, a file's creation date is independent of the zone in which it was created. I searched "ISO 8601" on ADC and found "Time Utilities Reference". But, I haven't read thru this document, yet.


Now, back to the original problem: Do dates stored in Numbers follow this standard?
and: Do dates stored in iCal follow this standard?


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  • Follow-Ups:
    • Re: Value of a date in Numbers
      • From: Michelle Steiner <email@hidden>
References: 
 >Value of a date in Numbers (From: Michelle Steiner <email@hidden>)
 >Re: Value of a date in Numbers (From: Luther Fuller <email@hidden>)
 >Re: Value of a date in Numbers (From: Michelle Steiner <email@hidden>)
 >Re: Value of a date in Numbers (From: Luther Fuller <email@hidden>)
 >Re: Value of a date in Numbers (From: "Mark J. Reed" <email@hidden>)

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