diff --git a/ext/date/lib/interval.c b/ext/date/lib/interval.c
index da9262da999b6..35b1ae21b1fab 100644
--- a/ext/date/lib/interval.c
+++ b/ext/date/lib/interval.c
@@ -201,7 +201,12 @@ int timelib_diff_days(timelib_time *one, timelib_time *two)
 			days--;
 		}
 	} else {
-		days = fabs(floor(one->sse - two->sse) / 86400);
+		double diff = fabs(floor(one->sse - two->sse) / 86400);
+		if (diff > INT_MAX) {
+			days = INT_MAX;
+		} else {
+			days = (int) diff;
+		}
 	}
 
 	return days;
diff --git a/ext/date/tests/bug19894.phpt b/ext/date/tests/bug19894.phpt
new file mode 100644
index 0000000000000..c1d4a36def299
--- /dev/null
+++ b/ext/date/tests/bug19894.phpt
@@ -0,0 +1,14 @@
+--TEST--
+DateTime::diff() with PHP_INT_MIN timestamp and timezone should not crash
+--FILE--
+<?php
+$nowTime = new DateTime();
+$nowTime->setTimestamp(PHP_INT_MIN);
+
+$dateTime = new DateTime();
+$dateTime->setTimezone(new DateTimeZone('America/New_York'));
+
+echo $dateTime->diff($nowTime)->format('%R %a %H %I %S'), "\n";
+?>
+--EXPECTREGEX--
+^[+-] [0-9]+ [0-9]+ [0-9]+ [0-9]+$
\ No newline at end of file