PERL TUTORIALS - Perl Date & Time
Perl Date & Time
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POSIX Function strftime()
Specifier | Replaced by | Example |
---|---|---|
%a | Abbreviated weekday name * | Thu |
%A | Full weekday name * | Thursday |
%b | Abbreviated month name * | Aug |
%B | Full month name * | August |
%c | Date and time representation * | Thu Aug 23 14:55:02 2001 |
%C | Year divided by 100 and truncated to integer (00-99 ) | 20 |
%d | Day of the month, zero-padded (01-31 ) | 23 |
%D | Short MM/DD/YY date, equivalent to %m/%d/%y | 08/23/01 |
%e | Day of the month, space-padded ( 1-31 ) | 23 |
%F | Short YYYY-MM-DD date, equivalent to %Y-%m-%d | 2001-08-23 |
%g | Week-based year, last two digits (00-99 ) | 01 |
%g | Week-based year | 2001 |
%h | Abbreviated month name * (same as %b ) | Aug |
%H | Hour in 24h format (00-23 ) | 14 |
%I | Hour in 12h format (01-12 ) | 02 |
%j | Day of the year (001-366 ) | 235 |
%m | Month as a decimal number (01-12 ) | 08 |
%M | Minute (00-59 ) | 55 |
%n | New-line character ('\n' ) | |
%p | AM or PM designation | PM |
%r | 12-hour clock time * | 02:55:02 pm |
%R | 24-hour HH:MM time, equivalent to %H:%M | 14:55 |
%S | Second (00-61 ) | 02 |
%t | Horizontal-tab character ('\t' ) | |
%T | ISO 8601 time format (HH:MM:SS ), equivalent to %H:%M:%S | 14:55 |
%u | ISO 8601 weekday as number with Monday as 1 (1-7 ) | 4 |
%U | Week number with the first Sunday as the first day of week one (00-53 ) | 33 |
%V | ISO 8601 week number (00-53 ) | 34 |
%w | Weekday as a decimal number with Sunday as 0 (0-6 ) | 4 |
%W | Week number with the first Monday as the first day of week one (00-53 ) | 34 |
%x | Date representation * | 08/23/01 |
%X | Time representation * | 14:55:02 |
%y | Year, last two digits (00-99 ) | 01 |
%Y | Year | 2001 |
%z | ISO 8601 offset from UTC in timezone (1 minute=1, 1 hour=100) If timezone cannot be termined, no characters | +100 |
%Z | Timezone name or abbreviation * If timezone cannot be termined, no characters | CDT |
%% | A % sign | % |
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Current Date & Time
sec, # seconds of minutes from 0 to 61 min, # minutes of hour from 0 to 59 hour, # hours of day from 0 to 24 mday, # day of month from 1 to 31 mon, # month of year from 0 to 11 year, # year since 1900 wday, # days since sunday yday, # days since January 1st isdst # hours of daylight savings timeADVERTISEMENTS
#!/usr/local/bin/perl @months = qw( Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ); @days = qw(Sun Mon Tue Wed Thu Fri Sat Sun); ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime(); print "$mday $months[$mon] $days[$wday]\n";
16 Feb Sat
#!/usr/local/bin/perl $datestring = localtime(); print "Local date and time $datestring\n";
Local date and time Sat Feb 16 06:50:45 2013GMT Time
#!/usr/local/bin/perl $datestring = gmtime(); print "GMT date and time $datestring\n";
GMT date and time Sat Feb 16 13:50:45 2013Format Date & Time:
#!/usr/local/bin/perl ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime(); printf("Time Format - HH:MM:SS\n"); printf("%02d:%02d:%02d", $hour, $min, $sec);
Time Format - HH:MM:SS 06:58:52Epoch time
#!/usr/local/bin/perl $epoc = time(); print "Number of seconds since Jan 1, 1970 - $epoc\n";
Number of seconds since Jan 1, 1970 - 1361022130
#!/usr/local/bin/perl $datestring = localtime(); print "Current date and time $datestring\n"; $epoc = time(); $epoc = $epoc - 12 * 60 * 60; # one day before of current date. $datestring = localtime($epoc); print "Yesterday's date and time $datestring\n";
Current date and time Sat Feb 16 07:05:39 2013 Yesterday's date and time Fri Feb 15 19:05:39 2013POSIX Function strftime()
#!/usr/local/bin/perl use POSIX qw(strftime); $datestring = strftime "%a %b %e %H:%M:%S %Y", localtime; printf("date and time - $datestring\n"); # or for GMT formatted appropriately for your locale: $datestring = strftime "%a %b %e %H:%M:%S %Y", gmtime; printf("date and time - $datestring\n");
date and time - Sat Feb 16 07:10:23 2013 date and time - Sat Feb 16 14:10:23 2013