From ee4bb34f91e7d0204e6a0ee36223773c7679f4ec Mon Sep 17 00:00:00 2001
From: Bryce Mecum <petridish@gmail.com>
Date: Mon, 6 Jul 2026 16:50:13 -0700
Subject: [PATCH] Use timegm in DaysSince too

---
 cpp/src/gandiva/tests/date_time_test.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/cpp/src/gandiva/tests/date_time_test.cc b/cpp/src/gandiva/tests/date_time_test.cc
index 2f1d876af869..8a59098c5c3b 100644
--- a/cpp/src/gandiva/tests/date_time_test.cc
+++ b/cpp/src/gandiva/tests/date_time_test.cc
@@ -105,9 +105,9 @@ int32_t DaysSince(time_t base_line, int32_t yy, int32_t mm, int32_t dd, int32_t
   given_ts.tm_min = min;
   given_ts.tm_sec = sec;
 
-  time_t ts = mktime(&given_ts);
+  time_t ts = timegm(&given_ts);
   if (ts == static_cast<time_t>(-1)) {
-    ARROW_LOG(FATAL) << "mktime() failed";
+    ARROW_LOG(FATAL) << "timegm() failed";
   }
   // time_t is an arithmetic type on both POSIX and Windows, we can simply
   // subtract to get a duration in seconds.