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Re: Converting datetime string to valid localtime value (seconds)

by halley (Prior)
on May 16, 2003 at 18:40 UTC ( #258732=note: print w/replies, xml ) Need Help??

in reply to Converting datetime string to valid localtime value (seconds)

Off by a day? Without digging deeper, I recall that the arrays returned by localtime() have a month from 0 to 11, inexplicably, but a day from 1 to ~31. Whether that's what you're hitting, I thought I'd take this opportunity to gripe about such fencepost errors.

[ e d @ h a l l e y . c c ]

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Re: Re: Converting datetime string to valid localtime value (seconds)
by vladb (Vicar) on May 16, 2003 at 18:51 UTC
    How do array indexes come into play when I'm only looking at this line of code:
    localtime(Date_SecsSince1970($mon{$mon}, $d, $y, $h, $mn, $s))
    If the values of $mon{$mon}, $d, $y, $h are valid (5, 15, 2003, 01 respectively), why the resulting datetime string returned by localtime() is in fact "Wed May 14 18:05:02 2003"?

    Please note that I do not force localtime() to return datetime values in array format. What this line of code (and accompanying output) seem to indicate is that the Date_SecsSince1970() method miscalculates seconds or, to state it otherwise, calculates seconds in a way that is incompatible with how the time() method does it.

    Afterall, print "time string: " . localtime(time()) would produce valid result.

    "We've all heard that a million monkeys banging on a million typewriters will eventually reproduce
    the entire works of Shakespeare. Now, thanks to the Internet, we know this is not true."

    Robert Wilensky, University of California

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