From 06e2723fe0fb66f42bc4ec692702540b374c2635 Mon Sep 17 00:00:00 2001
From: Jarrod Johnson <jjohnson2@lenovo.com>
Date: Fri, 21 Jun 2019 14:42:10 -0400
Subject: [PATCH] Improve date parsing performance

strptime attempts are moderately
expensive.  Detect one common
scenario using quicker mechanisms.

Change-Id: Id9346678f7def12981417da4d2e6374f457967c5
---
 pyghmi/util/parse.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pyghmi/util/parse.py b/pyghmi/util/parse.py
index eeed100a..a86fddb1 100644
--- a/pyghmi/util/parse.py
+++ b/pyghmi/util/parse.py
@@ -20,8 +20,9 @@ def parse_time(timeval):
     if timeval is None:
         return None
     try:
-        retval = datetime.strptime(timeval, '%Y-%m-%dT%H:%M:%SZ')
-        return retval.replace(tzinfo=tz.tzutc())
+        if '+' not in timeval and len(timeval.split('-')) <= 3:
+            retval = datetime.strptime(timeval, '%Y-%m-%dT%H:%M:%SZ')
+            return retval.replace(tzinfo=tz.tzutc())
     except ValueError:
         pass
     try: