/**
* @access public
* @param string $timezone_string
*/
public static function timezone_select_input($timezone_string = '')
{
// get WP date time format
$datetime_format = get_option('date_format') . ' ' . get_option('time_format');
// if passed a value, then use that, else get WP option
$timezone_string = !empty($timezone_string) ? $timezone_string : get_option('timezone_string');
// check if the timezone is valid but don't throw any errors if it isn't
$timezone_string = EEH_DTT_Helper::validate_timezone($timezone_string, false);
$gmt_offset = get_option('gmt_offset');
$check_zone_info = true;
if (empty($timezone_string)) {
// Create a UTC+- zone if no timezone string exists
$check_zone_info = false;
if ($gmt_offset > 0) {
$timezone_string = 'UTC+' . $gmt_offset;
} elseif ($gmt_offset < 0) {
$timezone_string = 'UTC' . $gmt_offset;
} else {
$timezone_string = 'UTC';
}
}
?>
<p>
<label for="timezone_string"><?php
_e('timezone');
?>
</label>
<select id="timezone_string" name="timezone_string">
<?php
echo wp_timezone_choice($timezone_string);
?>
</select>
<br />
<span class="description"><?php
_e('Choose a city in the same timezone as the event.');
?>
</span>
</p>
<p>
<span><?php
printf(__('%1$sUTC%2$s time is %3$s'), '<abbr title="Coordinated Universal Time">', '</abbr>', '<code>' . date_i18n($datetime_format, false, 'gmt') . '</code>');
?>
</span>
<?php
if (!empty($timezone_string) || !empty($gmt_offset)) {
?>
<br /><span><?php
printf(__('Local time is %1$s'), '<code>' . date_i18n($datetime_format) . '</code>');
?>
</span>
<?php
}
?>
<?php
if ($check_zone_info && $timezone_string) {
?>
<br />
<span>
<?php
// Set TZ so localtime works.
date_default_timezone_set($timezone_string);
$now = localtime(time(), true);
if ($now['tm_isdst']) {
_e('This timezone is currently in daylight saving time.');
} else {
_e('This timezone is currently in standard time.');
}
?>
<br />
<?php
if (function_exists('timezone_transitions_get')) {
$found = false;
$date_time_zone_selected = new DateTimeZone($timezone_string);
$tz_offset = timezone_offset_get($date_time_zone_selected, date_create());
$right_now = time();
$tr['isdst'] = false;
foreach (timezone_transitions_get($date_time_zone_selected) as $tr) {
if ($tr['ts'] > $right_now) {
$found = true;
break;
}
}
if ($found) {
$message = $tr['isdst'] ? __(' Daylight saving time begins on: %s.') : __(' Standard time begins on: %s.');
// Add the difference between the current offset and the new offset to ts to get the correct transition time from date_i18n().
printf($message, '<code >' . date_i18n($datetime_format, $tr['ts'] + ($tz_offset - $tr['offset'])) . '</code >');
} else {
_e('This timezone does not observe daylight saving time.');
}
}
// Set back to UTC.
date_default_timezone_set('UTC');
?>
</span></p>
<?php
}
}