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Bug #46670 date_sunrise (date_sunset) works incorrectly with gmtoffset parameter
Submitted: 2008-11-25 20:13 UTC Modified: 2017-10-24 07:50 UTC
Votes:7
Avg. Score:4.1 ± 0.8
Reproduced:6 of 6 (100.0%)
Same Version:2 (33.3%)
Same OS:2 (33.3%)
From: andrewboltachev at gmail dot com Assigned:
Status: Open Package: Date/time related
PHP Version: 5.2.6 OS: UNIX
Private report: No CVE-ID: None
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 [2008-11-25 20:13 UTC] andrewboltachev at gmail dot com
Description:
------------
date_sunrise (date_sunset) incorrectly works with gmtoffset parameter. When i use SUNFUNCS_RET_TIMESTAMP, it ignores it and calculates date by adding UTC sunrise date and my location offset. When use SUNFUNCS_RET_STRING, all is ok. I don't checked SUNFUNCS_RET_DOUBLE.

Reproduce code:
---------------
<?php
$lat = 43.1167; $lng = 131.9; //Vladivostok, Russia, UTC+10

date_default_timezone_set('Europe/Moscow'); //My location timezone, UTC+3

$zenith = 90+50/60;



$offset = 10; //Vladivostok

$sunrise_str = date_sunrise(time(),SUNFUNCS_RET_STRING,$lat,$lng,$zenith,$offset);
$sunrise_time = date_sunrise (time(),SUNFUNCS_RET_TIMESTAMP,$lat,$lng,$zenith,$offset);
echo "By string : $sunrise_str, by timestamp: ".date("Y-m-d H:i:s",$sunrise_time)."<br/>\n";



$offset = 0; //UTC

$sunrise_str = date_sunrise(time(),SUNFUNCS_RET_STRING,$lat,$lng,$zenith,$offset);
$sunrise_time = date_sunrise (time(),SUNFUNCS_RET_TIMESTAMP,$lat,$lng,$zenith,$offset);
echo "By string : $sunrise_str, by timestamp: ".date("Y-m-d H:i:s",$sunrise_time)."<br/>\n";



$offset = 3; //UTC plus my timezone offset

$sunrise_str = date_sunrise(time(),SUNFUNCS_RET_STRING,$lat,$lng,$zenith,$offset);
$sunrise_time = date_sunrise (time(),SUNFUNCS_RET_TIMESTAMP,$lat,$lng,$zenith,$offset);
echo "By string : $sunrise_str, by timestamp: ".date("Y-m-d H:i:s",$sunrise_time)."<br/>\n";
?>

Expected result:
----------------
By string : 08:16, by timestamp: 2008-11-25 08:16:18
By string : 22:16, by timestamp: 2008-11-24 22:16:18
By string : 01:16, by timestamp: 2008-11-25 01:16:18

Actual result:
--------------
By string : 08:16, by timestamp: 2008-11-25 01:16:18
By string : 22:16, by timestamp: 2008-11-25 01:16:18
By string : 01:16, by timestamp: 2008-11-25 01:16:18

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 [2017-10-24 07:50 UTC] kalle@php.net
-Status: Assigned +Status: Open -Assigned To: derick +Assigned To:
 
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