So I've checked the list of supported time zones in PHP and I was wondering how could I include them in the date() function?
Thanks!
I don't want a default timezone, each user has their timezone stored in the database, I take that timezone of the user and use it. How? I know how to take it from the database, not how to use it, though.
For such task, you should really be using PHP's DateTime class. Please ignore all of the answers advising you to use date() or date_set_time_zone, it's simply bad and outdated.
I'll use pseudocode to demonstrate, so try to adjust the code to suit your needs.
Assuming that variable $tz contains string name of a valid time zone and variable $timestamp contains the timestamp you wish to format according to time zone, the code would look like this:
$tz = 'Europe/London';
$timestamp = time();
$dt = new DateTime("now", new DateTimeZone($tz)); //first argument "must" be a string
$dt->setTimestamp($timestamp); //adjust the object to correct timestamp
echo $dt->format('d.m.Y, H:i:s');
DateTime class is powerful, and to grasp all of its capabilities - you should devote some of your time reading about it at php.net. To answer your question fully - yes, you can adjust the time zone parameter dynamically (on each iteration while reading from db, you can create a new DateTimeZone() object).
If I understood correct,You need to set time zone first like:
date_default_timezone_set('UTC');
And than you can use date function:
// Prints something like: Monday 8th of August 2005 03:12:46 PM
echo date('l jS \of F Y h:i:s A');
The answer above caused me to jump through some hoops/gotchas, so just posting the cleaner code that worked for me:
$dt = new DateTime();
$dt->setTimezone(new DateTimeZone('America/New_York'));
$dt->setTimestamp(123456789);
echo $dt->format('F j, Y # G:i');
Use the DateTime class instead, as it supports timezones. The DateTime equivalent of date() is DateTime::format.
An extremely helpful wrapper for DateTime is Carbon - definitely give it a look.
You'll want to store in the database as UTC and convert on the application level.
It should like this:
date_default_timezone_set('America/New_York');
U can just add, timezone difference to unix timestamp.
Example for Moscow (UTC+3)
echo date('d.m.Y H:i:s', time() + 3 * 60 * 60);
Try this. You can pass either unix timestamp, or datetime string
public static function convertToTimezone($timestamp, $fromTimezone, $toTimezone, $format='Y-m-d H:i:s')
{
$datetime = is_numeric($timestamp) ?
DateTime::createFromFormat ('U' , $timestamp, new DateTimeZone($fromTimezone)) :
new DateTime($timestamp, new DateTimeZone($fromTimezone));
$datetime->setTimezone(new DateTimeZone($toTimezone));
return $datetime->format($format);
}
this works perfectly in 2019:
date('Y-m-d H:i:s',strtotime($date. ' '.$timezone));
I have created this very straightforward function, and it works like a charm:
function ts2time($timestamp,$timezone){ /* input: 1518404518,America/Los_Angeles */
$date = new DateTime(date("d F Y H:i:s",$timestamp));
$date->setTimezone(new DateTimeZone($timezone));
$rt=$date->format('M d, Y h:i:s a'); /* output: Feb 11, 2018 7:01:58 pm */
return $rt;
}
I have tried the answers based on the DateTime class. While they are working, I found a much simpler solution that makes a DateTime object timezone aware at the time of creation.
$dt = new DateTime("now", new DateTimeZone('Asia/Jakarta'));
echo $dt->format("Y-m-d H:i:s");
This returns the current local time in Jakarta, Indonesia.
Not mentioned above. You could also crate a DateTime object by providing a timestamp as string in the constructor with a leading # sign.
$dt = new DateTime('#123456789');
$dt->setTimezone(new DateTimeZone('America/New_York'));
echo $dt->format('F j, Y - G:i');
See the documentation about compound formats:
https://www.php.net/manual/en/datetime.formats.compound.php
Based on other answers I built a one-liner, where I suppose you need current date time. It's easy to adjust if you need a different timestamp.
$dt = (new DateTime("now", new DateTimeZone('Europe/Rome')))->format('d-m-Y_His');
If you use Team EJ's answer, using T in the format string for DateTime will display a three-letter abbreviation, but you can get the long name of the timezone like this:
$date = new DateTime('2/3/2022 02:11:17');
$date->setTimezone(new DateTimeZone('America/Chicago'));
echo "\n" . $date->format('Y-m-d h:i:s T');
/* Displays 2022-02-03 02:11:17 CST "; */
$t = $date->getTimezone();
echo "\nTimezone: " . $t->getName();
/* Displays Timezone: America/Chicago */
$now = new DateTime();
$now->format('d-m-Y H:i:s T')
Will output:
29-12-2021 12:38:15 UTC
I had a weird problem on a hosting. The timezone was set correctly, when I checked it with the following code.
echo ini_get('date.timezone');
However, the time it returned was UTC.
The solution was using the following code since the timezone was set correctly in the PHP configuration.
date_default_timezone_set(ini_get('date.timezone'));
You can replace database value in date_default_timezone_set function,
date_default_timezone_set(SOME_PHP_VARIABLE);
but just needs to take care of exact values relevant to the timezones.
I'm trying to use 'whereBetween' eloqouent query with two given start and end dates.
$first_day_this_month = date('Y-m-01 H:s:i'); //get the first day of the current month
$yesterDay = date('Y-m-d H:s:i',strtotime("-1 days")); //get yesterday's date
$d = m_chat_history::where('employee_id',$request->other_id)
->whereNull('to_group')->where('to_employee_id',$request->id)
->whereBetween('created_at',[$yesterDay,$first_day_this_month])
->get();
I make sure I have all the required data for the query by 'var_dump' and it did gives me all the required data needed for the query but the query returns me an empty output. Any ideas, clues, suggestions, help, recommendations please? I tried to remove the 'whereBetween' and my query works like it returns me the expected output but with 'whereBetween', the return output is empty.
Make sure to use the same type and format as created_at when defining the values for whereBetween. As you're using datetime you could define edge values like (just one of many ways of doing it):
$first_day_this_month = date('Y-m-01 H:i:s');
$yesterday = date('Y-m-d H:i:s', strtotime("-1 day"));
Also make sure of the order of params (still please consider edge cases like first day of the month where $yesterday would be smaller, so you have to add some logic and be careful):
->whereBetween('created_at', [$first_day_this_month, $yesterday])
Edit: wasn't timestamp...
Try this,
but first you have to install Carbon with composer.
after doing that
use Carbon
then write the fallowing code
$yesterday = Carbon::yesterday()->toDateTimeString();
$carbon = new Carbon('first day of ' . date('F Y'));
$first_day = $carbon->toDateTimeString();
and in your query
->whereBetween('created_at', [$first_day, $yesterday])
I want to query data from my inventories table where created_at date = today date
How do I do that in Laravel ? I tried
date_default_timezone_set ('America/New_York');
$today = date("d"); // 18 ( since today is 2/18/2015 )
$inventories = Inventory::where( 'created_at' ,'=', $today )->get();
I got 0 result.
You can't just compare the day of the month with a timestamp. Try this instead:
$today = Carbon::now()->toDateString();
$inventories = Inventory::whereRaw('DATE(created_at) = ?', [$today])->get();
Background info: Carbon is a DateTime library that Laravel uses. It makes things a bit easier but of course you could get the current date with date() as well. However date("d") will not return the current date but actually just the day of the month. The full date would be date('Y-m-d').
Progress :
1. I retireved date from a collection.
Example format : Fri Oct 05 14:59:31 +0000 2012
2. I was able to change its format.
CODE USED :
$cur=$col->find(array(),array("created_at"=>1,"_id"=>0));
// created_at = contains Date value
$cur_all=$col->find();
while($doc=$cur_all->getNext())
{
$doc2=$cur->getNext();
$pieces = implode(" ", $doc2);
//converted the array to string with space delimiting
if($pieces!=NULL)
{
$date1 = date_create_from_format("D M d G:i:s +O Y", $pieces);
echo date_format ( $date1 , 'Y-m-d G:i:s' );
//This is the format i would like to update in mongodb..
$filter = array('_id'=>new MongoId($doc['_id']));
$update = array('$set'=>array('created_at'=> newMongoDate($date2)));
$col->update($filter,$update);
}
}
QUESTION :
Where to create a date object so that it could be updated to the documents in the collection in the expected format? (format : Y-m-d G:i:s )
P.S : I did a lot of research on Stackoverflow (And other places, as well.) but I could not come to any conclusions. That is why this question. Let me know if there are any clarifications
Hmm even though you have explained your background well your actual question:
Where to create a date object so that it could be updated to the documents in the collection in the expected format? (format : Y-m-d G:i:s )
Is a bit confusing.
MongoDB will always save the date in one format and one format only when using ISODate: http://en.wikipedia.org/wiki/ISO_8601 (otherwise known as MongoDate in PHP) and it is probably best to not mess with this status quo.
So I would recommend you use the format Y-m-d G:i:s only as display, i.e.:
$date1 = new MongoDate();
var_dump(date('Y-m-d G:i:s', $date1->sec));
And you use the original $date1 object to actually save to the database.
Of course this would change if you were to create a date in your specified format however here is a piece of code for an example:
$date1 = new MongoDate();
$date2 = new MongoDate(strtotime(date ( 'Y-m-d G:i:s', $date1->sec )));
var_dump(date('Y-m-d G:i:s', $date2->sec));
You can use the $date2 as the date to save into MongoDB formed from the specific format you want.
look at http://php.net/manual/en/class.mongodate.php
your code should create a date using a unix timestamp
$date2 = ('23rd April 2013');
$update = array('$set'=>array(
'created_at'=> new MongoDate(strtotime($date2))
));
http://www.php.net/manual/en/function.strtotime.php
I am trying to compare the current datetime, with a datetime from the database using string, as the following:
$today = new DateTime("now");
$todayString = $today->format('Y-m-d H:i:s');
if($todayString >= $rows["PrioritizationDueDate"])
{...}
$todayString keeps giving me the time 7 hours earlier (i.e now its 11:03pm, its giving me 16:04).
More, is it better to compare this way, or should i compare using datetime objects?
$todayString keeps giving me the time 7 hours earlier
you have to setup a timezone for the DateTime object I believe.
is it better to compare this way
I doubt so.
The general way is to compare in the query, using SQL to do all date calculations and return only matching rows.
Set a correct timezone in the constructor to DateTime.
$today = new DateTime("now", new DateTimeZone('TimezoneString'));
Where TimezoneString is a valid timezone string.
Edit: For a more complete example using DateTime objects, I would use DateTime::diff in conjunction with DateTime::createFromFormat.
$rows["PrioritizationDueDate"] = '2011-11-20 10:30:00';
$today = new DateTime("now", new DateTimeZone('America/New_York'));
$row_date = DateTime::createFromFormat( 'Y-m-d H:i:s', $rows["PrioritizationDueDate"], new DateTimeZone('America/New_York'));
if( $row_date->diff( $today)->format('%a') > 1)
{
echo 'The row timestamp is more than one day in the past from now.';
}
Demo
First set time zone using this function
date_default_timezone_set('UTC');
Then either you can use function strtotime() or get difference directly...