05-23-2019
It is always best to always get in the habit of converting time text string (formatted time) to a unix timestamp (a number).
Then, format the timestamp(s) math results as needed.
It's always best in programming to separate the time functions and processing of time from the formatting of strings, because it is trivial to convert strings to timestamps and timestamps to formatted strings.
FYI, Just about every date stored in our database here at unix.com is a unix timestamp. We generally don't store formatted date strings in DB tables (unless of course the date is part of some text in a post).
10 More Discussions You Might Find Interesting
1. Solaris
Hi ,
I am trying to find out the List of files modified or added aftter installation of any component on SUN solaris box .
But i am not able to do it using ls or find command .
Can somebody help me out ?
Thanks
Sanjay Gupta (2 Replies)
Discussion started by: sanajyg_mnit
2 Replies
2. Shell Programming and Scripting
Hi Everyone,
I was very sad after a long way but still cannot figure out the duration between two date.
$date1="20090812 23:48:56";
$date2="20090813 00:01:37";
The output will be "001241".
I did the following tries, like print localtime(UnixDate(ParseDate("20090812 23:48:56"),"%s"));... (2 Replies)
Discussion started by: jimmy_y
2 Replies
3. Shell Programming and Scripting
Hello,
I'm trying to create a shell script (#!/bin/sh) which should tell me the age of a file in minutes...
I have a process, which delivers me all 15 minutes a new file and I want to have a monitoring script, which sends me an email, if the present file is older than 20 minutes.
To do... (10 Replies)
Discussion started by: worm
10 Replies
4. Shell Programming and Scripting
Here is two time I have:
Jul 12 16:02:01
Jul 13 01:02:01
and how can I do a simple match to get difference between two time which is 09:00:00
Thanks in advance. (3 Replies)
Discussion started by: ford99
3 Replies
5. Shell Programming and Scripting
Hi - I am looking for a little help to read in 2 date fields from a file in format:
20120508134012.3
yyyymmddhhmmss.tenths of a second
So i want to:
1. Read in the 1st date from the file
2. Read in the second date from the file
3. Calculate the difference in minutes (or seconds)
4. ... (5 Replies)
Discussion started by: Newbie2012
5 Replies
6. Shell Programming and Scripting
Hi All,
I have the following time stamp data in 2 columns
Date TimeStamp(also with milliseconds)
05/23/2012 08:30:11.250
05/23/2012 08:30:15.500
05/23/2012 08:31.15.500
.
.
etc
From this data I need the following output.
0.00( row1-row1 in seconds)
04.25( row2-row1 in... (5 Replies)
Discussion started by: ks_reddy
5 Replies
7. Shell Programming and Scripting
Oracle Enterprise Linux
We want to track how long a process takes to complete its execution. This is what we want in the schell script
Before the process is started , get the time with date, hours and minutes
execute the process
After the process has ended , get the time with date,... (5 Replies)
Discussion started by: omega3
5 Replies
8. Shell Programming and Scripting
Hello All,
I have two strings with date and time as follows..
$starttime= "06/11/2013 ";
$starttime= "05:15";
$enddate="06/12/2013";
$endtime="04:45";
dates are in mm/dd/yyyy format and time in military format.
and I am looking the duration of time(in minutes) in between dates.
... (3 Replies)
Discussion started by: scriptscript
3 Replies
9. UNIX for Dummies Questions & Answers
hello,
I have implemented this command :
tshark -eth0 -T fiels -e frame.time et sip.Request-Line -z sip,stat > test2.txt
the result of this command : test.txt:
Aug 27, 2013 23:06:47.334270000 INVITE
Aug 27, 2013 23:06:47.335045000 SIP/2.0 401 Unauthorized
Aug 27, 2013... (1 Reply)
Discussion started by: Amouna
1 Replies
10. UNIX for Dummies Questions & Answers
Hi
there is a lot of file dated from last week till ofpresent date.
if i want to list only last 3 days files using ls command how can i do it
please suggest. below is the list of the file.
and i want to list files from MAy 12 to May 16.
Nov 22 2011 NSSM.UPPLSCPLB81
Jan 12... (2 Replies)
Discussion started by: scriptor
2 Replies
GMDATE(3) 1 GMDATE(3)
gmdate - Format a GMT/UTC date/time
SYNOPSIS
string gmdate (string $format, [int $timestamp = time()])
DESCRIPTION
Identical to the date(3) function except that the time returned is Greenwich Mean Time (GMT).
PARAMETERS
o $format
- The format of the outputted date string. See the formatting options for the date(3) function.
o $timestamp
- The optional $timestamp parameter is an integer Unix timestamp that defaults to the current local time if a $timestamp is not
given. In other words, it defaults to the value of time(3).
RETURN VALUES
Returns a formatted date string. If a non-numeric value is used for $timestamp, FALSE is returned and an E_WARNING level error is emitted.
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 5.1.0 | |
| | |
| | The valid range of a timestamp is typically from |
| | Fri, 13 Dec 1901 20:45:54 GMT to Tue, 19 Jan 2038 |
| | 03:14:07 GMT. (These are the dates that corre- |
| | spond to the minimum and maximum values for a |
| | 32-bit signed integer). However, before PHP 5.1.0 |
| | this range was limited from 01-01-1970 to |
| | 19-01-2038 on some systems (e.g. Windows). |
| | |
| 5.1.1 | |
| | |
| | There are useful constants of standard date/time |
| | formats that can be used to specify the $format |
| | parameter. |
| | |
+--------+---------------------------------------------------+
EXAMPLES
Example #1
gmdate(3) example
When run in Finland (GMT +0200), the first line below prints "Jan 01 1998 00:00:00", while the second prints "Dec 31 1997
22:00:00".
<?php
echo date("M d Y H:i:s", mktime(0, 0, 0, 1, 1, 1998));
echo gmdate("M d Y H:i:s", mktime(0, 0, 0, 1, 1, 1998));
?>
SEE ALSO
date(3), mktime(3), gmmktime(3), strftime(3).
PHP Documentation Group GMDATE(3)