get UTC time in PHP
PhpDatetimeUtcPhp Problem Overview
How can I get UTC/GMT +/- time stamp using PHP's date() function? For example, if I try
date("Y-m-d H:i:s", time());
I will get Unix time stamp; but I need to get UTC/GMT time stamp with string GMT/UTC+/-0400 or GMT/UTC+/-1000 based on local timings.
Php Solutions
Solution 1 - Php
Using gmdate will always return a GMT date. Syntax is same as for date.
Solution 2 - Php
A simple gmdate() will suffice
<?php
print gmdate("Y-m-d\TH:i:s\Z");
Solution 3 - Php
As previously answered here, since PHP 5.2.0 you can use the DateTime class and specify the UTC timezone with an instance of DateTimeZone.
The DateTime __construct() documentation suggests passing "now" as the first parameter when creating a DateTime instance and specifying a timezone to get the current time.
$date_utc = new \DateTime("now", new \DateTimeZone("UTC"));
echo $date_utc->format(\DateTime::RFC850); # Saturday, 18-Apr-15 03:23:46 UTC
Solution 4 - Php
$time = time();
$check = $time+date("Z",$time);
echo strftime("%B %d, %Y @ %H:%M:%S UTC", $check);
Solution 5 - Php
Obtaining UTC date
gmdate("Y-m-d H:i:s");
Obtaining UTC timestamp
time();
The result will not be different even you have date_default_timezone_set on your code.
Solution 6 - Php
date("Y-m-d H:i:s", time() - date("Z"))
Solution 7 - Php
Other than calling gmdate you can also put this code before your rest of the code:
<?php
date_default_timezone_set("UTC");
?>
That will make rest of your date/time related calls to use GMT/UTC timezone.
Solution 8 - Php
You can use gmmktime function without arguments to obtain the current UTC timestamp:
$time = gmmktime();
echo date("Y-m-d H:i:s", $time);
gmmktime will only work if your server time is using UTC. For example, my server is set to US/Pacific. the listed function above echos back Pacific time.
Solution 9 - Php
> with string GMT/UTC +/-0400 or GMT/UTC +/-1000 based on local timings
Your custom format is just missing O to give you the timezone offsets from local time.
> Difference to Greenwich time (GMT) in hours Example: +0200
date_default_timezone_set('America/La_Paz');
echo date('Y-m-d H:i:s O');
> 2018-01-12 12:10:11 -0400
However, for maximized portability/interoperability, I would recommend using the ISO8601 date format c
date_default_timezone_set('America/La_Paz');
echo date('c');
> 2018-01-12T12:10:11-04:00
date_default_timezone_set('Australia/Brisbane');
echo date('c');
> 2018-01-13T02:10:11+10:00
You can use also gmdate and the timezone offset string will always be +00:00
date_default_timezone_set('America/La_Paz');
echo gmdate('c');
> 2018-01-12T16:10:11+00:00
date_default_timezone_set('Australia/Brisbane');
echo gmdate('c');
> 2018-01-12T16:10:11+00:00
Solution 10 - Php
You can use following to get UTC time:
date_default_timezone_set('Asia/Calcutta');
$current_date = date("Y/m/d g:i A");
$ist_date = DateTime::createFromFormat(
'"Y/m/d g:i A"',
$current_date,
new DateTimeZone('Asia/Calcutta')
);
$utc_date = clone $ist_date;
$utc_date->setTimeZone(new DateTimeZone('UTC'));
echo 'UTC: ' . $utc_date->format('Y-m-d g:i A');
Solution 11 - Php
/**
* Converts a local Unix timestamp to GMT
*
* @param int Unix timestamp
* @return int
*/
function local_to_gmt($time = '')
{
if ($time === '')
{
$time = time();
}
return mktime(
gmdate('G', $time),
gmdate('i', $time),
gmdate('s', $time),
gmdate('n', $time),
gmdate('j', $time),
gmdate('Y', $time)
);
}
Solution 12 - Php
You'd like to use gmdate method to get GMT date.
gmdate("Y-m-d H:i:s");
gmdate date-formats resemble those in the date() method.
Solution 13 - Php
$code->created_at->setTimezone('UTC')
here $code->created_at = Asia/Dhaka Time.
Solution 14 - Php
Below find the PHP code to get current UTC(Coordinated Universal Time) time
<?php
// Prints the day
echo gmdate("l") . "<br>";
// Prints the day, date, month, year, time, AM or PM
echo gmdate("l jS \of F Y h:i:s A");
?>