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I am using meta_box value (YmdHi) and current Date&time to print time difference. And this code work for me.
Now additionally i want to print Live when 2 hours left to start Event.
What mistake I 'm doing to print if or else currently this not work for me?
$then = date( get_post_meta( get_the_ID(), '_start_eventtimestamp', true ) ) ;
$then = new DateTime($then);
$now = new DateTime();
$sinceThen = $then->diff($now);
if ($sinceThen > 2 * HOUR_IN_SECONDS){
echo $sinceThen->d.'days';
echo $sinceThen->h.'hours';
echo $sinceThen->i.'minutes';
}
else{
echo 'LIVE';
}
$sinceThen is a DateInterval (that's what DateTime::diff() returns), so you're comparing a int with an object, which obviously gives you unexpected results. To get the difference in seconds, subtract both DateTime instances' timestamps (which you obtain with DateTime::getTimestamp()):
$then = date( get_post_meta( get_the_ID(), '_start_eventtimestamp', true ) ) ;
$then = new DateTime($then);
$now = new DateTime();
$sinceThen = $then->diff($now);
$sinceThenInSeconds = $then->getTimestamp() - $now->getTimestamp();
if ($sinceThenInSeconds > 2 * HOUR_IN_SECONDS){
echo $sinceThen->d.'days';
echo $sinceThen->h.'hours';
echo $sinceThen->i.'minutes';
}
else{
echo 'LIVE';
}
Can anyone suggest an easy method to convert date and time to different timezones in php?
You can use the datetime object or their function aliases for this:
Example (abridged from PHP Manual)
date_default_timezone_set('Europe/London');
$datetime = new DateTime('2008-08-03 12:35:23');
echo $datetime->format('Y-m-d H:i:s') . "\n";
$la_time = new DateTimeZone('America/Los_Angeles');
$datetime->setTimezone($la_time);
echo $datetime->format('Y-m-d H:i:s');
Edit regarding comments
but i cannt use this method because i need to show date in different time zones as the user login from different locations
That's not a problem. When a user logs in, you determine his timezone and set it to your DateTime object just like shown. I'm using a similar approach in one of my projects and it works like a charm.
in the database i need to get the dates in any single timezone, then only it can be processed properly
You store the time either as a timestamp or a datetime in one timezone. When you query a DateTime field, you either convert the time in a DateTime object to this timezone or - if your db supports it - query with the selected timezone.
An even simpler method looks like this:
date_default_timezone_set('Europe/London'); // your user's timezone
$my_datetime='2013-10-23 15:47:10';
echo date('Y-m-d H:i:s',strtotime("$my_datetime UTC"));
As described in the PHP manual, strtotime() accepts a timezone too, you just have to append it to your datetime.
I recommend you to store all your datetimes in UTC because that way you won't have problems with the daylight savings.
This worked for me and it's pretty clean too!
function convert_to_user_date($date, $format = 'n/j/Y g:i A', $userTimeZone = 'America/Los_Angeles', $serverTimeZone = 'UTC')
{
try {
$dateTime = new DateTime ($date, new DateTimeZone($serverTimeZone));
$dateTime->setTimezone(new DateTimeZone($userTimeZone));
return $dateTime->format($format);
} catch (Exception $e) {
return '';
}
}
function convert_to_server_date($date, $format = 'n/j/Y g:i A', $userTimeZone = 'America/Los_Angeles', $serverTimeZone = 'UTC')
{
try {
$dateTime = new DateTime ($date, new DateTimeZone($userTimeZone));
$dateTime->setTimezone(new DateTimeZone($serverTimeZone));
return $dateTime->format($format);
} catch (Exception $e) {
return '';
}
}
//example usage
$serverDate = $userDate = '2014-09-04 22:37:22';
echo convert_to_user_date($serverDate);
echo convert_to_server_date($userDate);
None of these answers worked for me (I skipped trying code that was overly bulky in size). I also think it's weird to change the default timezone just for a single conversion.
Here is my solution:
function changeTimeZone($dateString, $timeZoneSource = null, $timeZoneTarget = null)
{
if (empty($timeZoneSource)) {
$timeZoneSource = date_default_timezone_get();
}
if (empty($timeZoneTarget)) {
$timeZoneTarget = date_default_timezone_get();
}
$dt = new DateTime($dateString, new DateTimeZone($timeZoneSource));
$dt->setTimezone(new DateTimeZone($timeZoneTarget));
return $dt->format("Y-m-d H:i:s");
}
So, to convert to the server default, you would just pass one timezone:
changeTimeZone("2016-10-24 16:28", "Asia/Tokyo");
To convert from the server default to the user, you would leave the 2nd parameter null or blank:
changeTimeZone("2016-10-24 16:28", "", "Asia/Tokyo");
And to switch between 2 timezones unrelated to the default, you would provide 2 timezones:
changeTimeZone("2016-10-24 16:28", "America/New_York", "Asia/Tokyo");
UTC to local:
<?php
$datetime = date("Y-m-d H:i:s");
$utc = new DateTime($datetime, new DateTimeZone('UTC'));
$utc->setTimezone(new DateTimeZone('America/Sao_Paulo'));
echo $utc->format('Y-m-d H:i:s');
?>
DateTime::setTimezone -- date_timezone_set — Sets the time zone for the DateTime object
Object oriented style
<?php
$date = new DateTime('2000-01-01', new DateTimeZone('Pacific/Nauru'));
echo $date->format('Y-m-d H:i:sP') . "\n";
$date->setTimezone(new DateTimeZone('Pacific/Chatham'));
echo $date->format('Y-m-d H:i:sP') . "\n";
?>
Procedural style
<?php
$date = date_create('2000-01-01', timezone_open('Pacific/Nauru'));
echo date_format($date, 'Y-m-d H:i:sP') . "\n";
date_timezone_set($date, timezone_open('Pacific/Chatham'));
echo date_format($date, 'Y-m-d H:i:sP') . "\n";
?>
The above examples will output:
2000-01-01 00:00:00+12:00
2000-01-01 01:45:00+13:45
// Convert date from one zone to another..
/*
$zone_from='Asia/Kolkata';
$zone_to='America/Phoenix';
date_default_timezone_set($zone_from);
$convert_date="2016-02-26 10:35:00";
echo $finalDate=zone_conversion_date($convert_date, $zone_from, $zone_to);
*/
function zone_conversion_date($time, $cur_zone, $req_zone)
{
date_default_timezone_set("GMT");
$gmt = date("Y-m-d H:i:s");
date_default_timezone_set($cur_zone);
$local = date("Y-m-d H:i:s");
date_default_timezone_set($req_zone);
$required = date("Y-m-d H:i:s");
/* return $required; */
$diff1 = (strtotime($gmt) - strtotime($local));
$diff2 = (strtotime($required) - strtotime($gmt));
$date = new DateTime($time);
$date->modify("+$diff1 seconds");
$date->modify("+$diff2 seconds");
return $timestamp = $date->format("Y-m-d H:i:s");
}
<?php
$time='6:02';
$dt = new DateTime($time, new DateTimeZone('America/New_York'));
//echo $dt->format('Y-m-d H:i:s') . PHP_EOL;
$dt->setTimezone(new DateTimeZone('Asia/Kolkata'));
echo $dt->format('H:i') . PHP_EOL;
?>
Try this:
function convertDate($dt, $timeZone) {
$UTC = new DateTimeZone("UTC");
$date= date('Y-m-d H:i:s', strtotime($dt));
$dateConv = new DateTime( $dt, $UTC );
$dateFormat ='m/d/Y h:i A';
$date->setTimezone(new DateTimeZone($timeZone));
return $date->format($dateFormat);
}
Can anyone suggest an easy method to convert date and time to different timezones in php?
You can use the datetime object or their function aliases for this:
Example (abridged from PHP Manual)
date_default_timezone_set('Europe/London');
$datetime = new DateTime('2008-08-03 12:35:23');
echo $datetime->format('Y-m-d H:i:s') . "\n";
$la_time = new DateTimeZone('America/Los_Angeles');
$datetime->setTimezone($la_time);
echo $datetime->format('Y-m-d H:i:s');
Edit regarding comments
but i cannt use this method because i need to show date in different time zones as the user login from different locations
That's not a problem. When a user logs in, you determine his timezone and set it to your DateTime object just like shown. I'm using a similar approach in one of my projects and it works like a charm.
in the database i need to get the dates in any single timezone, then only it can be processed properly
You store the time either as a timestamp or a datetime in one timezone. When you query a DateTime field, you either convert the time in a DateTime object to this timezone or - if your db supports it - query with the selected timezone.
An even simpler method looks like this:
date_default_timezone_set('Europe/London'); // your user's timezone
$my_datetime='2013-10-23 15:47:10';
echo date('Y-m-d H:i:s',strtotime("$my_datetime UTC"));
As described in the PHP manual, strtotime() accepts a timezone too, you just have to append it to your datetime.
I recommend you to store all your datetimes in UTC because that way you won't have problems with the daylight savings.
This worked for me and it's pretty clean too!
function convert_to_user_date($date, $format = 'n/j/Y g:i A', $userTimeZone = 'America/Los_Angeles', $serverTimeZone = 'UTC')
{
try {
$dateTime = new DateTime ($date, new DateTimeZone($serverTimeZone));
$dateTime->setTimezone(new DateTimeZone($userTimeZone));
return $dateTime->format($format);
} catch (Exception $e) {
return '';
}
}
function convert_to_server_date($date, $format = 'n/j/Y g:i A', $userTimeZone = 'America/Los_Angeles', $serverTimeZone = 'UTC')
{
try {
$dateTime = new DateTime ($date, new DateTimeZone($userTimeZone));
$dateTime->setTimezone(new DateTimeZone($serverTimeZone));
return $dateTime->format($format);
} catch (Exception $e) {
return '';
}
}
//example usage
$serverDate = $userDate = '2014-09-04 22:37:22';
echo convert_to_user_date($serverDate);
echo convert_to_server_date($userDate);
None of these answers worked for me (I skipped trying code that was overly bulky in size). I also think it's weird to change the default timezone just for a single conversion.
Here is my solution:
function changeTimeZone($dateString, $timeZoneSource = null, $timeZoneTarget = null)
{
if (empty($timeZoneSource)) {
$timeZoneSource = date_default_timezone_get();
}
if (empty($timeZoneTarget)) {
$timeZoneTarget = date_default_timezone_get();
}
$dt = new DateTime($dateString, new DateTimeZone($timeZoneSource));
$dt->setTimezone(new DateTimeZone($timeZoneTarget));
return $dt->format("Y-m-d H:i:s");
}
So, to convert to the server default, you would just pass one timezone:
changeTimeZone("2016-10-24 16:28", "Asia/Tokyo");
To convert from the server default to the user, you would leave the 2nd parameter null or blank:
changeTimeZone("2016-10-24 16:28", "", "Asia/Tokyo");
And to switch between 2 timezones unrelated to the default, you would provide 2 timezones:
changeTimeZone("2016-10-24 16:28", "America/New_York", "Asia/Tokyo");
UTC to local:
<?php
$datetime = date("Y-m-d H:i:s");
$utc = new DateTime($datetime, new DateTimeZone('UTC'));
$utc->setTimezone(new DateTimeZone('America/Sao_Paulo'));
echo $utc->format('Y-m-d H:i:s');
?>
DateTime::setTimezone -- date_timezone_set — Sets the time zone for the DateTime object
Object oriented style
<?php
$date = new DateTime('2000-01-01', new DateTimeZone('Pacific/Nauru'));
echo $date->format('Y-m-d H:i:sP') . "\n";
$date->setTimezone(new DateTimeZone('Pacific/Chatham'));
echo $date->format('Y-m-d H:i:sP') . "\n";
?>
Procedural style
<?php
$date = date_create('2000-01-01', timezone_open('Pacific/Nauru'));
echo date_format($date, 'Y-m-d H:i:sP') . "\n";
date_timezone_set($date, timezone_open('Pacific/Chatham'));
echo date_format($date, 'Y-m-d H:i:sP') . "\n";
?>
The above examples will output:
2000-01-01 00:00:00+12:00
2000-01-01 01:45:00+13:45
// Convert date from one zone to another..
/*
$zone_from='Asia/Kolkata';
$zone_to='America/Phoenix';
date_default_timezone_set($zone_from);
$convert_date="2016-02-26 10:35:00";
echo $finalDate=zone_conversion_date($convert_date, $zone_from, $zone_to);
*/
function zone_conversion_date($time, $cur_zone, $req_zone)
{
date_default_timezone_set("GMT");
$gmt = date("Y-m-d H:i:s");
date_default_timezone_set($cur_zone);
$local = date("Y-m-d H:i:s");
date_default_timezone_set($req_zone);
$required = date("Y-m-d H:i:s");
/* return $required; */
$diff1 = (strtotime($gmt) - strtotime($local));
$diff2 = (strtotime($required) - strtotime($gmt));
$date = new DateTime($time);
$date->modify("+$diff1 seconds");
$date->modify("+$diff2 seconds");
return $timestamp = $date->format("Y-m-d H:i:s");
}
<?php
$time='6:02';
$dt = new DateTime($time, new DateTimeZone('America/New_York'));
//echo $dt->format('Y-m-d H:i:s') . PHP_EOL;
$dt->setTimezone(new DateTimeZone('Asia/Kolkata'));
echo $dt->format('H:i') . PHP_EOL;
?>
Try this:
function convertDate($dt, $timeZone) {
$UTC = new DateTimeZone("UTC");
$date= date('Y-m-d H:i:s', strtotime($dt));
$dateConv = new DateTime( $dt, $UTC );
$dateFormat ='m/d/Y h:i A';
$date->setTimezone(new DateTimeZone($timeZone));
return $date->format($dateFormat);
}
How do I convert a date/time string (e.g. 2011-01-01 15:00:00) that is UTC to any given timezone php supports, such as America/New_York, or Europe/San_Marino.
PHP's DateTime object is pretty flexible.
$UTC = new DateTimeZone("UTC");
$newTZ = new DateTimeZone("America/New_York");
$date = new DateTime( "2011-01-01 15:00:00", $UTC );
$date->setTimezone( $newTZ );
echo $date->format('Y-m-d H:i:s');
PHP's DateTime object is pretty flexible.
Since the user asked for more than one timezone option, then you can make it generic.
Generic Function
function convertDateFromTimezone($date,$timezone,$timezone_to,$format){
$date = new DateTime($date,new DateTimeZone($timezone));
$date->setTimezone( new DateTimeZone($timezone_to) );
return $date->format($format);
}
Usage:
echo convertDateFromTimezone('2011-04-21 13:14','UTC','America/New_York','Y-m-d H:i:s');
Output:
2011-04-21 09:14:00
Assuming the UTC is not included in the string then:
date_default_timezone_set('America/New_York');
$datestring = '2011-01-01 15:00:00'; //Pulled in from somewhere
$date = date('Y-m-d H:i:s T',strtotime($datestring . ' UTC'));
echo $date; //Should get '2011-01-01 10:00:00 EST' or something like that
Or you could use the DateTime object.
function _settimezone($time,$defaultzone,$newzone)
{
$date = new DateTime($time, new DateTimeZone($defaultzone));
$date->setTimezone(new DateTimeZone($newzone));
$result=$date->format('Y-m-d H:i:s');
return $result;
}
$defaultzone="UTC";
$newzone="America/New_York";
$time="2011-01-01 15:00:00";
$newtime=_settimezone($time,$defaultzone,$newzone);
General purpose normalisation function to format any timestamp from any timezone to other.
Very useful for storing datetimestamps of users from different timezones in a relational database. For database comparisons store timestamp as UTC and use with gmdate('Y-m-d H:i:s')
/**
* Convert Datetime from any given olsonzone to other.
* #return datetime in user specified format
*/
function datetimeconv($datetime, $from, $to)
{
try {
if ($from['localeFormat'] != 'Y-m-d H:i:s') {
$datetime = DateTime::createFromFormat($from['localeFormat'], $datetime)->format('Y-m-d H:i:s');
}
$datetime = new DateTime($datetime, new DateTimeZone($from['olsonZone']));
$datetime->setTimeZone(new DateTimeZone($to['olsonZone']));
return $datetime->format($to['localeFormat']);
} catch (\Exception $e) {
return null;
}
}
Usage:
$from = ['localeFormat' => "d/m/Y H:i A", 'olsonZone' => 'Asia/Calcutta'];
$to = ['localeFormat' => "Y-m-d H:i:s", 'olsonZone' => 'UTC'];
datetimeconv("14/05/1986 10:45 PM", $from, $to); // returns "1986-05-14 17:15:00"
How about:
$timezone = new DateTimeZone('UTC');
$date = new DateTime('2011-04-21 13:14', $timezone);
echo $date->format;
Can anyone suggest an easy method to convert date and time to different timezones in php?
You can use the datetime object or their function aliases for this:
Example (abridged from PHP Manual)
date_default_timezone_set('Europe/London');
$datetime = new DateTime('2008-08-03 12:35:23');
echo $datetime->format('Y-m-d H:i:s') . "\n";
$la_time = new DateTimeZone('America/Los_Angeles');
$datetime->setTimezone($la_time);
echo $datetime->format('Y-m-d H:i:s');
Edit regarding comments
but i cannt use this method because i need to show date in different time zones as the user login from different locations
That's not a problem. When a user logs in, you determine his timezone and set it to your DateTime object just like shown. I'm using a similar approach in one of my projects and it works like a charm.
in the database i need to get the dates in any single timezone, then only it can be processed properly
You store the time either as a timestamp or a datetime in one timezone. When you query a DateTime field, you either convert the time in a DateTime object to this timezone or - if your db supports it - query with the selected timezone.
An even simpler method looks like this:
date_default_timezone_set('Europe/London'); // your user's timezone
$my_datetime='2013-10-23 15:47:10';
echo date('Y-m-d H:i:s',strtotime("$my_datetime UTC"));
As described in the PHP manual, strtotime() accepts a timezone too, you just have to append it to your datetime.
I recommend you to store all your datetimes in UTC because that way you won't have problems with the daylight savings.
This worked for me and it's pretty clean too!
function convert_to_user_date($date, $format = 'n/j/Y g:i A', $userTimeZone = 'America/Los_Angeles', $serverTimeZone = 'UTC')
{
try {
$dateTime = new DateTime ($date, new DateTimeZone($serverTimeZone));
$dateTime->setTimezone(new DateTimeZone($userTimeZone));
return $dateTime->format($format);
} catch (Exception $e) {
return '';
}
}
function convert_to_server_date($date, $format = 'n/j/Y g:i A', $userTimeZone = 'America/Los_Angeles', $serverTimeZone = 'UTC')
{
try {
$dateTime = new DateTime ($date, new DateTimeZone($userTimeZone));
$dateTime->setTimezone(new DateTimeZone($serverTimeZone));
return $dateTime->format($format);
} catch (Exception $e) {
return '';
}
}
//example usage
$serverDate = $userDate = '2014-09-04 22:37:22';
echo convert_to_user_date($serverDate);
echo convert_to_server_date($userDate);
None of these answers worked for me (I skipped trying code that was overly bulky in size). I also think it's weird to change the default timezone just for a single conversion.
Here is my solution:
function changeTimeZone($dateString, $timeZoneSource = null, $timeZoneTarget = null)
{
if (empty($timeZoneSource)) {
$timeZoneSource = date_default_timezone_get();
}
if (empty($timeZoneTarget)) {
$timeZoneTarget = date_default_timezone_get();
}
$dt = new DateTime($dateString, new DateTimeZone($timeZoneSource));
$dt->setTimezone(new DateTimeZone($timeZoneTarget));
return $dt->format("Y-m-d H:i:s");
}
So, to convert to the server default, you would just pass one timezone:
changeTimeZone("2016-10-24 16:28", "Asia/Tokyo");
To convert from the server default to the user, you would leave the 2nd parameter null or blank:
changeTimeZone("2016-10-24 16:28", "", "Asia/Tokyo");
And to switch between 2 timezones unrelated to the default, you would provide 2 timezones:
changeTimeZone("2016-10-24 16:28", "America/New_York", "Asia/Tokyo");
UTC to local:
<?php
$datetime = date("Y-m-d H:i:s");
$utc = new DateTime($datetime, new DateTimeZone('UTC'));
$utc->setTimezone(new DateTimeZone('America/Sao_Paulo'));
echo $utc->format('Y-m-d H:i:s');
?>
DateTime::setTimezone -- date_timezone_set — Sets the time zone for the DateTime object
Object oriented style
<?php
$date = new DateTime('2000-01-01', new DateTimeZone('Pacific/Nauru'));
echo $date->format('Y-m-d H:i:sP') . "\n";
$date->setTimezone(new DateTimeZone('Pacific/Chatham'));
echo $date->format('Y-m-d H:i:sP') . "\n";
?>
Procedural style
<?php
$date = date_create('2000-01-01', timezone_open('Pacific/Nauru'));
echo date_format($date, 'Y-m-d H:i:sP') . "\n";
date_timezone_set($date, timezone_open('Pacific/Chatham'));
echo date_format($date, 'Y-m-d H:i:sP') . "\n";
?>
The above examples will output:
2000-01-01 00:00:00+12:00
2000-01-01 01:45:00+13:45
// Convert date from one zone to another..
/*
$zone_from='Asia/Kolkata';
$zone_to='America/Phoenix';
date_default_timezone_set($zone_from);
$convert_date="2016-02-26 10:35:00";
echo $finalDate=zone_conversion_date($convert_date, $zone_from, $zone_to);
*/
function zone_conversion_date($time, $cur_zone, $req_zone)
{
date_default_timezone_set("GMT");
$gmt = date("Y-m-d H:i:s");
date_default_timezone_set($cur_zone);
$local = date("Y-m-d H:i:s");
date_default_timezone_set($req_zone);
$required = date("Y-m-d H:i:s");
/* return $required; */
$diff1 = (strtotime($gmt) - strtotime($local));
$diff2 = (strtotime($required) - strtotime($gmt));
$date = new DateTime($time);
$date->modify("+$diff1 seconds");
$date->modify("+$diff2 seconds");
return $timestamp = $date->format("Y-m-d H:i:s");
}
<?php
$time='6:02';
$dt = new DateTime($time, new DateTimeZone('America/New_York'));
//echo $dt->format('Y-m-d H:i:s') . PHP_EOL;
$dt->setTimezone(new DateTimeZone('Asia/Kolkata'));
echo $dt->format('H:i') . PHP_EOL;
?>
Try this:
function convertDate($dt, $timeZone) {
$UTC = new DateTimeZone("UTC");
$date= date('Y-m-d H:i:s', strtotime($dt));
$dateConv = new DateTime( $dt, $UTC );
$dateFormat ='m/d/Y h:i A';
$date->setTimezone(new DateTimeZone($timeZone));
return $date->format($dateFormat);
}