From 296a2cab07ce530809ee74dee61180fbb3ca6f91 Mon Sep 17 00:00:00 2001 From: Nobuyoshi Nakada <nobu@ruby-lang.org> Date: Tue, 16 Feb 2021 19:36:20 +0900 Subject: [PATCH] Parse "-00:00" as UTC for the round-trip [Feature #17544] --- test/ruby/test_time_tz.rb | 2 ++ time.c | 4 +++- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/test/ruby/test_time_tz.rb b/test/ruby/test_time_tz.rb index 37838908b9..fdc9e114b5 100644 --- a/test/ruby/test_time_tz.rb +++ b/test/ruby/test_time_tz.rb @@ -261,6 +261,8 @@ class TestTimeTZ < Test::Unit::TestCase assert_predicate(Time.new(2019, 1, 1, 0, 0, 0, "UTC"), :utc?) assert_predicate(Time.new(2019, 1, 1, 0, 0, 0, "utc"), :utc?) assert_predicate(Time.new(2019, 1, 1, 0, 0, 0, "Z"), :utc?) + assert_predicate(Time.new(2019, 1, 1, 0, 0, 0, "-00:00"), :utc?) + assert_not_predicate(Time.new(2019, 1, 1, 0, 0, 0, "+00:00"), :utc?) end def test_military_names diff --git a/time.c b/time.c index 050a52615f..bd79110c5e 100644 --- a/time.c +++ b/time.c @@ -2150,8 +2150,10 @@ utc_offset_arg(VALUE arg) if (s[0] != '+' && s[0] != '-') goto invalid_utc_offset; if (!ISDIGIT(s[1]) || !ISDIGIT(s[2])) goto invalid_utc_offset; n += (s[1] * 10 + s[2] - '0' * 11) * 3600; - if (s[0] == '-') + if (s[0] == '-') { + if (n == 0) return UTC_ZONE; n = -n; + } return INT2FIX(n); } else {