37 lines
1.3 KiB
Diff
37 lines
1.3 KiB
Diff
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From 47f3da1cf49377c25772bb54d07db55225bbb142 Mon Sep 17 00:00:00 2001
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From: Guillaume Bourcier <guillaumebourcier@free.fr>
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Date: Tue, 11 Oct 2011 13:45:33 +0200
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Subject: [PATCH] libc: fix daylight saving time handling
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The algorithm computing daylight saving time incorrectly adds a day for
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each month after January for leap years. The clock shift from/to DST can
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be delayed if the last Sunday of a transition month is exactly seven
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days before the first of the following month.
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This change adds a day for the February month only.
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Signed-off-by: Guillaume Bourcier <guillaumebourcier@free.fr>
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Signed-off-by: Richard Braun <rbraun@sceen.net>
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Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
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---
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libc/misc/time/time.c | 2 +-
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1 files changed, 1 insertions(+), 1 deletions(-)
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diff --git a/libc/misc/time/time.c b/libc/misc/time/time.c
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index 19d68e1..8e2ebf1 100644
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--- a/libc/misc/time/time.c
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+++ b/libc/misc/time/time.c
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@@ -689,7 +689,7 @@ static int tm_isdst(register const struct tm *__restrict ptm,
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++day;
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}
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monlen = 31 + day_cor[r->month -1] - day_cor[r->month];
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- if (isleap && (r->month > 1)) {
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+ if (isleap && (r->month == 2)) {
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++monlen;
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}
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/* Wweekday (0 is Sunday) of 1st of the month
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--
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1.7.3.4
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