See package dateutils, which can be found in many repositories, and includes ddiff:
Some additional details:
The package utilities take some practice to learn, but are very useful for dealing with almost any form of date and time data.
Best wishes ... cheers, drl
Last edited by drl; 04-04-2017 at 01:59 PM..
Reason: Correct minor typo (spelling).
Hi All,
Wish you a Happy New year...
I have to find the difference between two dates, the result should be the number of days. I have seen the "datecalc" function. Its good, can I have any other alternative.
Thanks in Advance
Raju (4 Replies)
Hi All
How to get the difference between two dates in no of days ??? My date format is like this YYYY/MM/DD. I have to get the no of days between two dates in the given format.
I tried to search the forum but nothing came up similar to my requitement. Your help will be appreciated.
... (1 Reply)
Hello,
I would like to find out the number of days between two dates of the format yyyy-mm-dd.
Any help on this is highly appreciated.
Thanks. (6 Replies)
Hi all.
My question may seems to be similar to one that already been here. But i need a little other solution.
I have two dates in format dd/mm/yyyy. I need to find number of days between them. I need to do it in bash script.
I am running on Solaris machine and have cutted 'date' command version... (1 Reply)
Hi,
Is there any way I can get the difference between two dates in terms of days?
I have used this method so far, but I cant format it in terms of days.
@a=&DateCalc($date1,$date2,0);
The o/p that I am getting is sort of like this:
+0:0:0:4:0:0:0
I just want to get 4 days as an o/p.... (1 Reply)
Hello!
i need to find files lower and bigger that one date i pass, i search in the man find, but i didn't find anything, the only that i find is the parameter -mtime, in this parameter i can pass a number of days, but i need to know the difference between dates, any built-in function for do... (15 Replies)
Hi!
I have two parameters like this: YYYY-MM-DD YYYY-MM-DD
My question is, there is a direct command for get the elapsed time between the 2 dates, or I have to find another way?
Thx! (1 Reply)
hi all,
I need a help for below requirement.
Difference between two dates"12-11-2009" and "03-25-2012" (mm-dd-yy format") in weeks and days and hours
Please help me for this. Thanks in adv....
I am working in AIX, so dont have below command:-
date --version (2 Replies)
Hi Friends,
I have a file that has the contents like below:
file1.txt
5,13/07/2013 23:25:25,14/07/2013 19:40:21
5,13/07/2013 23:25:25,14/07/2013 19:40:43
5,12/07/2013 23:50:50,13/07/2013 20:30:26
5,12/07/2013 23:20:24,13/07/2013 19:40:53
60,14/07/2013 00:00:00,14/07/2013 23:00:39... (5 Replies)
I have a script which is printing date in below format while writing the logs.
theDate=`date +"%m%d%Y"`
theTime=`date +"%H%M%S"`
echo $theDate $theTime
How can i find out difference current time and above format. Appreciate your help. (6 Replies)
Discussion started by: srikanth38
6 Replies
LEARN ABOUT MOJAVE
time2posix
TIME2POSIX(3) BSD Library Functions Manual TIME2POSIX(3)NAME
time2posix, posix2time -- convert seconds since the Epoch
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <time.h>
time_t
time2posix(time_t t);
time_t
posix2time(time_t t);
DESCRIPTION
IEEE Std 1003.1-1988 (``POSIX.1'') legislates that a time_t value of 536457599 shall correspond to "Wed Dec 31 23:59:59 GMT 1986." This
effectively implies that POSIX time_t's cannot include leap seconds and, therefore, that the system time must be adjusted as each leap
occurs.
If the time package is configured with leap-second support enabled, however, no such adjustment is needed and time_t values continue to
increase over leap events (as a true `seconds since...' value). This means that these values will differ from those required by POSIX by the
net number of leap seconds inserted since the Epoch.
Typically this is not a problem as the type time_t is intended to be (mostly) opaque--time_t values should only be obtained-from and passed-
to functions such as time(3), localtime(3), mktime(3) and difftime(3). However, IEEE Std 1003.1-1988 (``POSIX.1'') gives an arithmetic
expression for directly computing a time_t value from a given date/time, and the same relationship is assumed by some (usually older) appli-
cations. Any programs creating/dissecting time_t's using such a relationship will typically not handle intervals over leap seconds cor-
rectly.
The time2posix() and posix2time() functions are provided to address this time_t mismatch by converting between local time_t values and their
POSIX equivalents. This is done by accounting for the number of time-base changes that would have taken place on a POSIX system as leap sec-
onds were inserted or deleted. These converted values can then be used in lieu of correcting the older applications, or when communicating
with POSIX-compliant systems.
The time2posix() function is single-valued. That is, every local time_t corresponds to a single POSIX time_t. The posix2time() function is
less well-behaved: for a positive leap second hit the result is not unique, and for a negative leap second hit the corresponding POSIX time_t
does not exist so an adjacent value is returned. Both of these are good indicators of the inferiority of the POSIX representation.
The following table summarizes the relationship between time_t and its conversion to, and back from, the POSIX representation over the leap
second inserted at the end of June, 1993.
DATE TIME T X=time2posix(T) posix2time(X)
93/06/30 23:59:59 A+0 B+0 A+0
93/06/30 23:59:60 A+1 B+1 A+1 or A+2
93/07/01 00:00:00 A+2 B+1 A+1 or A+2
93/07/01 00:00:01 A+3 B+2 A+3
A leap second deletion would look like...
DATE TIME T X=time2posix(T) posix2time(X)
??/06/30 23:59:58 A+0 B+0 A+0
??/07/01 00:00:00 A+1 B+2 A+1
??/07/01 00:00:01 A+2 B+3 A+2
[Note: posix2time(B+1) => A+0 or A+1]
If leap-second support is not enabled, local time_t's and POSIX time_t's are equivalent, and both time2posix() and posix2time() degenerate to
the identity function.
SEE ALSO difftime(3), localtime(3), mktime(3), time(3)BSD September 11, 2005 BSD