From a5fbbd2fca0c8cd2a3c0c9a898dca37addf4b2e0 Mon Sep 17 00:00:00 2001
From: Matej Marusak <mmarusak@redhat.com>
Date: Thu, 6 Dec 2018 11:59:56 +0100
Subject: [PATCH 2/2] lib: Explicitly do not use DST

DST = Daylight Saving Time
Value of this field is not set up by strptime and therefore value
of `tm_isdst` field is undefined. Bacause of this reason, output of
`mktime` may differ +-1 hour.

Signed-off-by: Matej Marusak <mmarusak@redhat.com>
(cherry picked from commit bd7b93d056d780df18b377f5c553611deeff2443)
---
 src/lib/iso_date_string.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/lib/iso_date_string.c b/src/lib/iso_date_string.c
index ab23f05b..cb887832 100644
--- a/src/lib/iso_date_string.c
+++ b/src/lib/iso_date_string.c
@@ -61,6 +61,9 @@ int iso_date_string_parse(const char *date, time_t *pt)
         return -EINVAL;
     }
 
+    // daylight saving time not in use
+    local.tm_isdst = 0;
+
     *pt = mktime(&local);
     return 0;
 }
-- 
2.21.0