From 65145d492797a8c5f5e95098b49ea4b00f49be4c Mon Sep 17 00:00:00 2001
From: "B. Watson" <urchlay@slackware.uk>
Date: Tue, 2 Dec 2025 17:06:20 -0500
Subject: unalf: Really fix off-by-one-hour bug. I hope.

---
 src/alf.c     | 2 ++
 src/extract.c | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/alf.c b/src/alf.c
index 9f9ae9d..702837e 100644
--- a/src/alf.c
+++ b/src/alf.c
@@ -108,6 +108,8 @@ unsigned long get_msdos_date_time(void) {
 	else
 		tm = localtime(&t);
 
+	tm->tm_isdst = 0;
+
 	/* use a 0 timestamp if the year's out of range, unalf will
 	   display it as <none>. */
 	if(tm->tm_year < 80 || tm->tm_year > 207)
diff --git a/src/extract.c b/src/extract.c
index ebd9a29..b14b321 100644
--- a/src/extract.c
+++ b/src/extract.c
@@ -55,7 +55,7 @@ void set_datetime() {
 
 	d = dpeek(alf_hdr_date0);
 
-	tm.tm_isdst = 0;
+	tm.tm_isdst = -1;
 	tm.tm_sec = (t & 0x1f) << 1;
 	tm.tm_hour = t >> 11;
 	if(tm.tm_hour == 24) tm.tm_hour = 0;
-- 
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