From 99fc5dc13c12d874ffc1c8f47a6421494e720b31 Mon Sep 17 00:00:00 2001
From: Seunghun Lee <waydi1@gmail.com>
Date: Sat, 16 Feb 2019 16:43:42 +0900
Subject: Fixed #30141 -- Fixed parse_duration() for some negative durations.

---
 django/utils/dateparse.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'django/utils/dateparse.py')

diff --git a/django/utils/dateparse.py b/django/utils/dateparse.py
index 8d08b7d1d3..f90d952581 100644
--- a/django/utils/dateparse.py
+++ b/django/utils/dateparse.py
@@ -29,9 +29,10 @@ datetime_re = re.compile(
 standard_duration_re = re.compile(
     r'^'
     r'(?:(?P<days>-?\d+) (days?, )?)?'
-    r'((?:(?P<hours>-?\d+):)(?=\d+:\d+))?'
-    r'(?:(?P<minutes>-?\d+):)?'
-    r'(?P<seconds>-?\d+)'
+    r'(?P<sign>-?)'
+    r'((?:(?P<hours>\d+):)(?=\d+:\d+))?'
+    r'(?:(?P<minutes>\d+):)?'
+    r'(?P<seconds>\d+)'
     r'(?:\.(?P<microseconds>\d{1,6})\d{0,6})?'
     r'$'
 )
-- 
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