Re: [vox-tech] Easiest way to calculate date in 100 ns increments?
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Re: [vox-tech] Easiest way to calculate date in 100 ns increments?
BTW, `cal 9 1752` may amuse some people:
$ cal 9 1752
September 1752
Su Mo Tu We Th Fr Sa
1 2 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
$ _
Somehow changing the locale doesn't change `cal`'s behavior. It should,
though. A bug, perhaps?
-Mark
On Wed, 23 Jun 2004, Mark K. Kim wrote:
> On Wed, 23 Jun 2004, emily wrote:
>
> > I need to be able to convert dates from a human readable format
> > (something like YYYYMMDD) to a number in hundred nanosecond intervals
> > starting from Jan 1 1601 as 0.
> >
> > I hope that makes sense. Anyways, for example, 12th Dec 2003 translates
> > to 126871488000000000.
> >
> > Anyone know a nice easy way to do it?
>
> Do you need to be able to represent dates between 1601 and 1970? Most
> computers can't internally represent dates before 1970, so there are most
> likely no "nice easy" ways (no one straight-forward algorithm) in any
> platform or system. At least September 1752 will need some tweaking (it
> has missing 11 days due to historical reasons, but I think only in
> England-origin calendars - other calendars skip 11 or more days in other
> months -- see
> http://users.skynet.be/sky60754/genealbe/hulpwetkalverhe.htm#Calendar%20Change%20Dates
> )
>
> Having said that, `date` is a nice tool for converting from human readable
> format to hour/minute/sec/nanosec if you're scripting, and the source is
> freely available if you're using C!
>
> -Mark
>
>
> --
> Mark K. Kim
> AIM: markus kimius
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--
Mark K. Kim
AIM: markus kimius
Homepage: http://www.cbreak.org/
Xanga: http://www.xanga.com/vindaci
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