1 files changed, 27 insertions, 0 deletions
diff --git a/timezonedb-guess.patch b/timezonedb-guess.patch
new file mode 100644
index 000000000000..10c057e40799
--- /dev/null
+++ b/timezonedb-guess.patch
@@ -0,0 +1,27 @@
+index cf4a11b..f2ea919 100644
+--- a/ext/date/php_date.c
++++ b/ext/date/php_date.c
+@@ -545,6 +545,23 @@ static char* guess_timezone(const timelib_tzdb *tzdb)
+ 		DATEG(timezone_valid) = 1;
+ 		return DATEG(default_timezone);
+ 	}
++	/* Try to guess timezone from system information */
++	{
++		struct tm *ta, tmbuf;
++		time_t     the_time;
++		char      *tzid = NULL;
++
++		the_time = time(NULL);
++		ta = php_localtime_r(&the_time, &tmbuf);
++		if (ta) {
++			tzid = timelib_timezone_id_from_abbr(ta->tm_zone, ta->tm_gmtoff, ta->tm_isdst);
++		}
++		if (! tzid) {
++			tzid = "UTC";
++		}
++
++		return tzid;
++	}
+ 	/* Fallback to UTC */
+ 	return "UTC";
+ }