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Re: Where were you at epoch == 0 ?

by ww (Archbishop)
on Mar 01, 2013 at 12:57 UTC ( #1021245=note: print w/replies, xml ) Need Help??

in reply to Where were you at epoch == 0 ?

Which "epoch?"

To mention (blatantly lifted from WP) a few:

  • ( (31 Dec 01(BCE) 23:59:59) + 1 sec ) - MATLAB & Symbian
  • 01 January 01 - M$ .NET
  • 01 Jan 1601 - NTFS, COBOL, Win32/Win64
  • 01 Jan 1753 - M$ SQL Server
  • 30 Dec 1899 - M$ COM DATE, Object Pascal
  • 01 Jan 1904 - Mac OS thrru V9 & Palm OS
  • 31 Dec 1967- Pick OS
  • 01 Jan 1970 - Unix time & languages such as Perl, C, Java, JS
  • 01 Jan 1980 - DOS, OS/2, FAT16 and FAT32 filesystems
  • 01 Jan 2001 - Apple's Cocoa framework

Who wudda' thunk M$ would assert so many different epochs?.

If you didn't program your executable by toggling in binary, it wasn't really programming!

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Re^2: Where were you at epoch == 0 ?
by tobyink (Abbot) on Mar 01, 2013 at 13:28 UTC

    This being a Perl-related site, obviously the COBOL one.

    package Cow { use Moo; has name => (is => 'lazy', default => sub { 'Mooington' }) } say Cow->new->name
Re^2: Where were you at epoch == 0 ?
by talexb (Canon) on Mar 01, 2013 at 13:58 UTC

    :) Pick whichever one you like. I chose the Linux one, AprilJanuary 1, 1970, at 0000 Eastern TimeUTC.

    I was coming up to my twelfth birthday, in grade 6 (form 2 at the boy's school I was attending in Westmount, Quebec). Apart from WFF 'N Proof, I didn't have much exposure to computers I could use. My Dad took my downtown to his office sometimes, where he'd do something incomprehensible with the IBM 370 mainframe that he was working on at the time. He'd leave me to entertain myself on the Keypunch machines.

    Alex / talexb / Toronto

    "Groklaw is the open-source mentality applied to legal research" ~ Linus Torvalds

    Update: Of course, it was January, not April. Don't know where my brain was this morning. The caffeine deficiency is being rectified.

    Update 2: Of course, the time zone should be UTC, and not Eastern Time. Zero for two, in case anyone's keeping track.

      I chose the Linux one, April 1, 1970,

      1st of April? Don't you mean the 1st of January?

      Assuming the latter, at that exact moment I was in my parental home playing monopoly with my dad, 5 siblings, a couple of older sister's boyfriends and an uncle & aunt.

      If you've ever played monopoly with a dozen people all mildly intoxicated (kids were allowed small glasses of Raisin Wine on Xmas and New Year), it gets very silly.

      The neighbors must have thought we were mad; breaking out in to a chorus of happy birthday every time someone got the "It is your birthday, collect .." card.

      With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
      Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
      "Science is about questioning the status quo. Questioning authority".
      In the absence of evidence, opinion is indistinguishable from prejudice.

      Eastern Time? What Dat? UTC-5? UTC+10? UTC+2?

      But in any case, time_t 0 is at 1970-01-01 00:00:00 UTC.

        I intended to use Unix time when I suggested this poll .. and somehow my brain convinced me that would be April 1, not January 1, and Eastern Time and not UTC. (My birthday's in April, this year it's a sorta significant one .. that's probably where that came from.)

        I stand corrected!

        Alex / talexb / Toronto

        "Groklaw is the open-source mentality applied to legal research" ~ Linus Torvalds

Re^2: Where were you at epoch == 0 ?
by girarde (Hermit) on Mar 22, 2013 at 21:17 UTC
    I prefer to give my date of birth in Planck times since the Big Bang.

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