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