how to get date before say 20 days ?

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QAIX > Perl web-programming > how to get date before say 20 days ? 24 July 2001 19:32:25

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how to get date before say 20 days ?
Shweta Shah 24 July 2001 19:32:25
	hello, is there something in perl through which i can get date previous to some specified days ,say 20 days befores date i need to know only dd-mm-yy and not time is there any module function for it thanks shweta
		Add comment


Sascha Kersken 24 July 2001 14:43:27 [ permanent link ]
	Hi! The module Date::Calc provides a function AddDelta_Days(). It works like: ($year,$month,$day) = Add_Delta_Days($year,$month,$day, $Dd); where the result is a list consisting of year, month and date; the arguments to the function are another year, month, date and a difference number of days - which, in your case, can be -20. So your problem could be solved like: #!/usr/bin/perl -w use Date::Calc; ($sec,$min,$hour,$mday,$mon,$year) = localtime (time); ($oldyear, $oldmonth, $oldday) = Add_Delta_Days ($year, $month, $day, -20); Regards Sascha ---------->Von: "shweta shah" <sshah@vertex.co.in>>An: <beginners@perl.org>>Betreff: how to get date before say 20 days ?>Datum: Die, 24. Jul 2001 13:24 Uhr> hello,> is there something in perl through which i can get> date previous to some specified days ,say 20 days befores date> i need to know only dd-mm-yy and not time> is there any module function for it> thanks> shweta>
		Add comment


Steve Howard 24 July 2001 14:47:00 [ permanent link ]
	Date::Calc has functions to make that very easy. Steve H. -----Original Message----- From: shweta shah [mailto:sshah@vertex.co.in] Sent: Tuesday, July 24, 2001 6:24 AM To: beginners@perl.org Subject: how to get date before say 20 days ? hello, is there something in perl through which i can get date previous to some specified days ,say 20 days befores date i need to know only dd-mm-yy and not time is there any module function for it thanks shweta
		Add comment


Craig Moynes/Markham/IBM 24 July 2001 15:44:25 [ permanent link ]
	hello,>is there something in perl through which i can get>date previous to some specified days ,say 20 days befores date>i need to know only dd-mm-yy and not time>is there any module function for it>thanks>shweta I have seen several people mention Date::Calc, I believe that is overkill for your situation. Take a look at the localtime function (perldoc -f localtime). This will dump the date you specified into epoch time and then you can subtract the specified days (converted into seconds) from that number. ----------------------------------------- Craig Moynes Internship Student netCC Development IBM Global Services, Canada Tel: (905) 316-3486 cmoynes@ca.ibm.com
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Luke Bakken 24 July 2001 18:14:14 [ permanent link ]
	time() and locatime() functions are all you need, plus you need to figure out the number of seconds in 20 days On Tue, 24 Jul 2001, shweta shah wrote: hello,> is there something in perl through which i can get> date previous to some specified days ,say 20 days befores date> i need to know only dd-mm-yy and not time> is there any module function for it> thanks> shweta>
		Add comment


Jeff 'japhy/Marillion' Pinyan 24 July 2001 19:32:25 [ permanent link ]
	On Jul 24, shweta shah said: is there something in perl through which i can get>date previous to some specified days ,say 20 days befores date>i need to know only dd-mm-yy and not time>is there any module function for it Apart from what others have said, you can't JUST take the localtime() of time - 20 * 86400: $n = time; $t = $n - 20 * 86400; $now = localtime($n); $then = localtime($t); That will fail in some cases, where daylight savings time comes on or off. To safely do this math, you should get the time for today at NOON. use Time::Local; $n = timelocal(0,0,12, (localtime)[3,4,5]); # noon, today $t = $n - 20 * 86400; $now = localtime($n); $then = localtime($t); -- Jeff "japhy" Pinyan japhy@pobox.com http://www.pobox.com/~japhy/ I am Marillion, the wielder of Ringril, known as Hesinaur, the Winter-Sun. Are you a Monk? http://www.perlmonks.com/ http://forums.perlguru.com/ Perl Programmer at RiskMetrics Group, Inc. http://www.riskmetrics.com/ Acacia Fraternity, Rensselaer Chapter. Brother #734 Manning Publications, Co, is publishing my Perl Regex book
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QAIX > Perl web-programming > how to get date before say 20 days ? 24 July 2001 19:32:25

	see also: create temp table in rule date array Most efficient way to hard-sort records		пройди тесты:		see also: Reports from jemmy framework documentum training why not in frensh?

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how to get date before say 20 days ?

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