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| | Unix time - Wikipedia, the free encyclopedia |
 | | The earliest versions of Unix time had a 32-bit integer incrementing at a rate of 60 Hz, which was the rate of the system clock on the hardware of the early Unix systems. | | | The Unix time number is zero at the Unix epoch, and increases by exactly 86400 per day since the epoch. | | | As a result, Unix times such as 915148799.50, apparently in the second preceding a leap second, are de facto ambiguous, as are (both de facto and de jure) times such as 915148800.50. |
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http://www.wikipedia.org/wiki/Unix_epoch
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| | Unix epoch |
| | In computing, the Unix epoch (also known as Unix Time Stamp) is the representation of points in time as the number of non-leap seconds since 00:00:00 UTC on January 1 1970, introduced by the Unix operating system, standardised in POSIX, and later adopted by the Java programming language and JavaScript. | | | The time() function is used in the Perl programming language to retrieve the Unix epoch. | | | The function 'time()' is used in the PHP language to output the Unix Time Stamp. |
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http://www.sciencedaily.com/encyclopedia/unix_epoch
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| | Time out of XML-X |
| | NOTE that Unix time is only capable of representing dates between Unix epoch, 01 January 1970 and when it runs out of 31 bits and goes negative, 19 January 2038. | | | Unix solved the time problem back in 1970. | | | That is, they are all defined number ranges, with Unix being 10 digits, Java 13, and win32 being 18. |
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http://xml-x.org/time.html
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| | Wired News: Unix Tick Tocks to a Billion |
| | That instant will be an anniversary for the Unix operating system: It marks one billion seconds since midnight on Jan. 1, 1970, which is the moment Unix computers recognize as zero-time. | | | In Unix language, that date is represented by the number 999,999,999 -- the same number that some Unix applications use to denote the end of a file." | | | It's important to remember that this isn't Unix's "birthday" -- rough versions of the operating system were around in the 1960s. |
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http://www.wired.com/news/technology/0,1282,46651,00.html
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| | PowWeb Community Forums - Date offset |
| | Different OS's, databases and languages have different ways of formatting date/times but the UNIX epoch timestamp is the ideal commonality between them all. | | | 4-14-03 06:32 PM In my mind, unix epoch is to d/m/y format as degrees kelvin is to degrees celcius: it's absolute time. | | | The reason that you can add 18000 is that the time() function in PHP returns the number of seconds that have elapsed since the beginning of the UNIX epoch (January 1 1970 00:00:00 GMT)... |
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http://forum.powweb.com/printthread.php?t=19125
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| | Comments on 5202 Ask MetaFilter |
| | To the nerds, this is known as the "UNIX epoch." If this counter gets reset to zero or somehow becomes negative, it's 1969 all over again as far as your computer knows. | | | In UNIX systems, the time is internally represented as seconds elapsed since the stroke of midnight, 00:00 GMT, January 1st, 1970. | | | More on this Unix epoch thing from wikipedia. |
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http://ask.metafilter.com/mefi/5202
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| | matchstick unix the online unix manual, with tutorials, help, and training in unix commands. |
| | One of the goals of unix is to have a small kernel written in assembler, and the rest in a high-level language. | | | : Needing to justify the cost of development, Unix is used (with the assembly-langfuage-coded troff) in the Bell Labs patent department as a one of the first word-processing programs. | | | : Unix development increases with the acquisition of a DEC (Digital Equipment Corporation) PDP-11, a state-of-the-art $65,000 computer with 24 kilobytes of RAM and 512 kilobytes of disk space. |
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http://www.matchstick.com/unix/history.html
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| | XyNexT & Year 2000 Compliance |
| | The UNIX operating system counts the number of seconds since the UNIX epoch in order to determine dates (the UNIX epoch was on midnight, January 1, 1970). | | | The UNIX operating system uses a different date-keeping method than that used by those computers affected by the two-digit date issue. | | | Most of the servers owned by XyNexT have the UNIX operating system. |
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http://xynext.com/faq/year2000.htm
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| | The Year 2038 Problem |
| | Early UNIX programmers had quite a sense of humor. | | | And, perhaps worse, the parts of their software they had to fix for Year 2000 Compliance will be completely different from the parts of their programs that will fail on 19-Jan-2038, so fixing one problem will not fix the other. |
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http://pw2.netcom.com/~rogermw/Y2038.html
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| | Project 2038 FAQ |
| | Some Unix vendors have already started to use a 64-bit signed time_t in their operating systems to count the number of seconds since GMT 00:00:00, Thursday, January 1, 1970 C.E. Programs or databases with a fixed field width should probably allocate at least 48 bits to storing time values. | | | One second later, many Unix systems will revert to their birth date (like an odometer rollover from 999999 to 000000). | | | Clock circuit hardware which has adopted the Unix time convention may also be affected if 32-bit registers are used. |
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http://www.deepsky.com/~merovech/2038.html
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| | Calculating Unix Epoch Time In Sql Server Results |
| | UNIX, Windows QASE is a unique distributed system simulation and analysis tool used for modeling performance of contemporary client-server architectures in time... | | | be used to convert any unix epoch time stamp, whether current time or an old... | | | time() and strtotime() return time values WRT the Unix Epoch. |
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http://www.unix-hosts.org/directory/calculating-unix-epoch-time-in-sql-server.html
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| | The Year 2038 Bug |
| | As with all Unix and Unix-like operating systems, time and dates in FreeBSD are represented internally as the number of seconds since the UNIX Epoch, which was the 1st of January 1970 GMT. | | | To give an indication if a Unix machine is 2038 Compliant, one can run this perl script to see if the time is incremented correctly. | | | Which means that 32-bit UNIX systems won't be able to process time beyond 19 Jan 2038 at 3:14:07 AM One of the common solutions will be to switch to 64-bit architecture systems that can store a maximium of |
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http://gsp.com/2038
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| | Information Directory unix epoch time |
| | Epoch is available on the Digital UNIX Freeware CD-ROM (see answer... | | | Seconds since the Unix Epoch (January 1 1970... | | | slide_004.html next UNIX epoch time UNIX time measured in seconds since January 1, 1970. |
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http://www.digital-tips.com/unix/unix-epoch-time.htm
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| | Geek Austin A Billion seconds of UNIX and a GeekAustin party! |
| | The "localtime()" function takes a time in unix epoch format (a big integer) and prints out the time that number represents in your current locality. | | | So if we're still using 32bit unix in 37 years we'll have a problem (macs, btw, operate the same way; maybe 'cuz jobs ran a unix company for a while?). | | | Interesting side effect of this is that Unix will have a Y2Kish number problem when unix epoch time is X + 1 where X is the max size of a (signed, because unix deals with negative epoch too for times |
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http://geekaustin.org/articles/01/08/11/229215.shtml
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| | Articles - Unix billennium |
| | The Unix Billennium is the point in time represented by a Unix time value of 10 | | | Some programs which stored timestamps using a text representation encountered sorting errors, as in a text sort times after the turnover, starting with a "1" digit, erroneously sorted before earlier times starting with a "9" digit. | | | The Unix Billennium is sometimes described as "10 |
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http://www.lastring.com/articles/Unix_billennium
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| | Re: RFC 99 (v2) Standardize ALL Perl platforms on UNIX epoch |
| | This has the added benefit that most users will see no >>>change, since most users use a version of Perl which is already based on >>>the UNIX epoch. | | | Re: RFC 99 (v2) Standardize ALL Perl platforms on UNIX epoch Nathan Wiger | | | Re: RFC 99 (v2) Standardize ALL Perl platforms on UNIX epoch Alan Burlison |
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http://www.mail-archive.com/perl6-language-datetime%40perl.org/msg00001.html
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| | PostgreSQL Discussion - Input timestamp from epoch? |
| | And the epoch is reasonably easy to work with. | | | not seeing where I can use an epoch format as input for a timestamp(0) | | | I read section 8.5 "Date/Time Types" and I can see I can input an |
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http://www.droptable.com/archive451-2005-8-56021.html
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| | UNIX Approaches Ripe Old Age of One Billion |
| | I don't know why people aren't worried about the Y2.038K problem with Unix (on 32 bit int computers)... | | | An alphabetical sort is the same as a numerical sort if the there is a fixed number of digits. | | | Other operating systems are not expected to reach this venerable age within the near future; for example, no version of Windows nor its ancestor, DOS, will turn one billion for more than a decade. |
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http://www.electromagnetic.net/press-releases/unixonebln.php
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| | search.cpan.org: Time::Unix - Force time() to return seconds since UNIX epoch |
| | This module does one thing: It imports a new version of time() that returns seconds since the UNIX epoch on ALL platforms. | | | This doesn't do anything useful on UNIX platforms, so don't do that. | | | Time::Unix - Force time() to return seconds since UNIX epoch |
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http://search.cpan.org/~nwiger/Time-Unix/Unix.pm
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| | C++ Programming: UNIX EPOCH DATE TO MDYHMS..... |
| | Mnashadka has stored the Unix Epoch date into the variable 'now'. | | | He has set it to time(NULL) which returns the Unix Epoch date. | | | mnashadka...I don't see where you're allowing the Unix Epoch date to be entered for converion? |
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http://www.experts-exchange.com/Programming/Programming_Languages/Cplusplus/Q_20123914.html
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| | Unix Time Stamp . com |
| | Therefore, the unix time stamp is merely the number of seconds between a particular date and the Unix Epoch. | | | But by then we'll all be using 64-bit processors in our computers solving this potential date of death for millions of applications. | | | Download the Unix Time Stamp.com Calculator Source Code (906 bytes) |
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http://www.unixtimestamp.com
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| | Converting a date to unix timestamp (epoch seconds) |
| | You want to compare a Postgresql date or timestamp to a unix time (seconds since the epoch). | | | Converting a date to unix timestamp (epoch seconds) | | | If you are planning to do a lot of temporal manipulation, always use Postgresql's date/time types - they offer better features. |
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http://www.archonet.com/pgdocs/date-to-epoch.html
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| | Epoch for Windows heads to space |
| | It could also streamline the transfer of operational data from Epoch to other applications that run under Windows, such as Excel and PowerPoint. | | | Integral Systems Inc. of Lanham, Md., is releasing a version of its Epoch satellite management software for Microsoft Windows platforms. | | | “There’s a huge wealth of third-party software for Windows that either you can’t get at all for Unix or is grotesquely expensive,” Chamberlain said. |
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http://www.gcn.com/vol1_no1/daily-updates/24134-1.html
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| | DateTime::Format::Epoch::Unix - Convert DateTimes to/from Unix epoch seconds |
| | This module can convert a DateTime object (or any object that can be converted to a DateTime object) to the number of seconds since the Unix epoch. | | | This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. | | | DateTime::Format::Epoch::Unix - Convert DateTimes to/from Unix epoch seconds |
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http://cpan.uwinnipeg.ca/htdocs/DateTime-Format-Epoch/DateTime/Format/Epoch/Unix.html
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| | PhpDig.net - PHP - unixtojd |
| | For more information on the UNIX epoch, visit http://www.foldoc.org/ and search for | | | unixtojd — Converts a UNIX timestamp to a Julian day count. | | | unixtojd() converts a UNIX timestamp to a Julian day count. |
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http://www.phpdig.net/ref/rn05re78.html
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| | Brad Abrams : Seconds since the Unix epoch in C# |
| | # re: Seconds since the Unix epoch in C# | | | Brad Abrams : Seconds since the Unix epoch in C# Search | | | Sorry, if this is obvious, but I was poking around and did not see a date formatter for XSD formats - is there one in the framework? |
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http://blogs.msdn.com/brada/archive/2004/03/20/93332.aspx
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| | The JavaScript Source: Equivalents: Unix Date-Time Converter |
| | Converts a Unix timestamp (in seconds) to a human-readable date. | | | (Based on the standard Unix epoch of 01/01/1970 at 00:00:00 GMT) | | | Copy the coding into the HEAD of your HTML document 2. |
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http://javascript.internet.com/equivalents/unix-date-time-converter.html
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| | unix_epoch - OneLook Dictionary Search |
| | We found one dictionary with English definitions that includes the word unix epoch: | | | Tip: Click on the first link on a line below to go directly to a page where "unix epoch" is defined. |
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http://www.onelook.com/?w=unix_epoch&loc=resrd
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| | Converting normal time to Epoch time format using excel :: MrExcel Message Board |
| | One has entries with normal human readable time format, the other uses the unix epoch time format. | | | I think I'm correct in saying that UNIX time is the number of seconds that has elapsed since 1/1/1970. | | | I've got a thousand or so entries, so it would be nice to find a way to do this on a large scale. |
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http://www.mrexcel.com/archive2/44100/51255.htm
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| | iWeb Toolkit: Convert To and From Unix Epoch Timestamps |
| | Each issue is packed with Search Engine News, Expert Programming and Optimization Tips, The Scumbag of the Week, Random Musings from your humble host... | | | iWeb Toolkit: Convert To and From Unix Epoch Timestamps |
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http://www.virtualpromote.com/tools/unixtime
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| | Unix Manual, first edition |
| | The first edition of the Unix Programmer's Manual, dated November 3, 1971, is available here in image, Postscript, and PDF format. | | | We even anticipated the millenium bug: time was measured in sixtieths of a second since 1 Jan. 1971 as a 32 bit quantity. | | | The BUGS section for time(II) remarks, "The cronological-minded reader will note that 2**32 sixtieths of a second is only about 2.5 years." Later, this was patched more than once by declaring a new epoch, then again in 1973 by making the units full seconds dating from the 1970 New Year--this is the "classical" Unix epoch. |
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http://cm.bell-labs.com/cm/cs/who/dmr/1stEdman.html
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| | Full Text Bug Listing |
| | Created an attachment (id=118) [edit] This SmarterSource file redefines the procs that must use the "unix" epoch with mtime. | | | I will attach a new version of the procs in DocProjects.tcl to this bug report. | | | Bug 1448 - Elec templates do not use the righ epoch with mtime |
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http://rutherglen.ics.mq.edu.au/~alpha-bugzilla/long_list.cgi?buglist=1448
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| | Spiderpro: How to display the last modification date |
| | Date.parse() returns the number of milliseconds after the Unix epoch date. | | | A good method to test is the method parse() from the object Date. | | | If the information is missing or wrongly interpreted, the value of document.lastModified defaults to the Unix epoch: January 1, 1970 0h0m0s, sometimes also shown as December 31, 1969, 23h 59m 59s. |
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http://www.spiderpro.com/bu/bujvsh003.html
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| | [SATLUG] Epoch trivia question |
| | > The UNIX epoch of midnight Jan 1, 1970 makes sense... | | | Unlike UNIX based > systems whose epoch is midnight Jan 1, 1970, Macs use midnight Jan 1, > 1904 as their epoch. | | | I > reached a point in the file where a couple of dates were recorded. |
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http://www.satlug.org/pipermail/satlug/2002-May/002300.html
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| | datetime to unix epoch time on SQL Newsgroups |
| | Is there a function in SQL Server to convert a datetime into Unix Epoch time, | | | > Is there a function in SQL Server to convert a datetime into Unix Epoch | | | datetime to unix epoch time on SQL Newsgroups |
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http://www.sqlnewsgroups.net/group/microsoft.public.sqlserver.server/topic2793.aspx
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| | Converting UNIX Dates (Decimal and Hexadecimal) |
| | Here's some Javascript forms to convert UNIX Dates (both decimal and hexadecimal) to "human" time (both local time and UTC/GMT). | | | These forms require a JavaScript to be enabled in your web browser to work. | | | UNIX dates are measured in seconds since midnight 1/1/1970 UTC (GMT). |
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http://dan.drydog.com/unixdatetime.html
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| | Date convertion |
| | Here is a very simple C program that will allow you to convert a date to the Unix epoch (number of seconds since 1st of January 1970). | | | You can choose any format as long as you remember it when you will run date2epoch. | | | Click here to download it.To compile it, use the following syntax : |
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http://moon.homeunix.com:8080/epoch.ang.html
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| | Calendar bugs: The Shy Epoch and The Epoch that never comes... - vBulletin Community Forum |
| | Any week with a number less than 1 repeats December 31st the number of days there are between that week, and that the Unix Epoch. | | | Well, if you hadn't guessed, I've two bugs relating to the calendar, and the UNIX Epoch (Jan 1, 1970). | | | Calendar bugs: The Shy Epoch and The Epoch that never comes... |
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http://www.vbulletin.com/forum/showthread.php?t=72039
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| | Pigdog Journal -- Life Before Unix |
| | Oddly, the History of civilization extends far prior to the beginning of the Unix epoch on January first, 1970. | | | But it behooves us to discover more about those strange ancestors of ours that lived before Unix. | | | How these strange primitive peoples existed without such vital tools as grep and awk, we may never know. |
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http://www.pigdog.org/categories/Past.html
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| | NewsForge New Billennium Party for the Unix epoch |
| | You're invited to help us "party like it's 10e9 - 1" on Open Projects Net IRC. | | | Rob Levin writes, "The New Billennium, the roll-over of the Unix epoch to 1,000,000,000, is arriving on Sunday, September 9, 2001, at 01:46:40 (UTC). | | | Submit a story » Subscribe to newsletters » |
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http://www.newsforge.com/newsvac/01/09/07/1721209.shtml
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