Perl - Handling Dates and Time

Perl module P216

Handling Dates and Time

Exercises, examples and other material relating to training module P216. This topic is presented on public courses Perl Programming, Perl bootcamp

Learning to program in Perl / Perl Programming - training course - Programming Perl - for newcomers to the language

Learning to program in Perl / Perl Programming - Programming Perl - for newcomers to the language This course introduces you to the Perl programming language. ...

http://www.wellho.net/course/ppfull.html [course]

Learning to Program in Perl / Perl Programming - training course - Learning Perl - whether you're new to programming or 'converting'.

Learning to Program in Perl / Perl Programming - Learning Perl - whether you're new to programming or 'converting'. This course covers programming in the ...

http://www.wellho.net/course/lpfull.html [course]

Custom course - training course - Custom course

Custom course - Custom course Custom course This is a custom course that will be tailored to your trainee's needs and based on their current knowledge ...

http://www.wellho.net/course/ccfull.html [course]

Perl Bootcamp - training course - The fundamentals of the language.

Perl Bootcamp - The fundamentals of the language. This course covers the fundamentals of the Perl programming for computer professionals who are new to ...

http://www.wellho.net/course/bpfull.html [course]

Perl - turning seconds into days, hours, minutes and seconds

So often you'll be working within a program in seconds - elapsed times, delays, that sort of thing - but want to report times back to the user in terms ...

http://www.wellho.net/mouth/765_Perl ... conds.html [short article]

Time conversions in Perl

Time isn't the easiest unit on which to do arithmetic, and dates expressed as a human-readable string are quite tricky to sort. Just imagine trying to ...

http://www.wellho.net/mouth/454_Time ... -Perl.html [short article]

current date and time (system dependent!)

#!/usr/bin/perl $current = `date`; print "Current date and time is $current"; $day = `date +%A`; print "Today is $day";

http://www.wellho.net/resources/ex.php4?item=p216/dt3 [code sample]

Was 8 p.m. on 28th February in Los Angeles before or after 8 a.m. in Tokyo on 1st March? Perl has a very neat trick to handling dates and times, meaning that such questions can be easily resolved. We'll show you that trick, and we'll show you the various functions that you can use to handle dates and times in Perl.

This topic is presented on public courses Perl Programming, Perl bootcamp

Examples from our training material

chivvy	Using %SIG to timeout keyboard entry
dante	Date and time demos
dt1	file last modified (days ago)
dt2	dt2 - file last modified (seconds from 1.1.1970)
dt3	current date and time (system dependent!)
dt4	use of time and localtime
dt5	compare a stated date and time with now!
hf	Modified "chivvy" - perhaps less OS dependent
sigint	Use of Signals in Perl to trap ^C (Control C)
tim	Converting times between epoch seconds and regular time

Pictures

Perl - a modern language for ancient languages

Background information

This module is available under an Open Training Notes License for free download from http://www.training-notes.co.uk.

Topics covered in this module

So far.
File status operators.
stat on a file.
Via system commands.
How Perl handles dates and times.
Other date information available.
Convertors.
Convert from epoch seconds into "human readable" form:.
Convert from human readable form to epoch seconds.
Handling centuries.
Elapsed time sleep.
alarm.
Summary.

Complete learning

If you are looking for a complete course and not just a information on a single subject, visit our Listing and schedule page.

Well House Consultants specialise in training courses in Python, Perl, PHP, and MySQL. We run Private Courses throughout the UK (and beyond for longer courses), and Public Courses at our training centre in Melksham, Wiltshire, England. It's surprisingly cost effective to come on our public courses - even if you live in a different country or continent to us.

We have a technical library of over 700 books on the subjects on which we teach. These books are available for reference at our training centre. Also available is the Opentalk Forum for discussion of technical questions.