示例

Handle Irish negative daylight saving time in Europe/Dublin and fractional timezone offsets via tzinfo-data 1.2026.3 RubyDataSource

sha256:967b44b9ed23ee74332149fbaf7c9fe13f8adea23da770d3fe56ada88ca65a89

案例

目标

Handle Irish negative daylight saving time in Europe/Dublin and fractional timezone offsets via tzinfo-data 1.2026.3 RubyDataSource HOW

包

tzinfo-data 1.2026.3

环境

ruby

创建时间

2026-08-17T18:34:40Z

常见的想当然

In European timezones such as Europe/Dublin, winter periods are standard time with dst? returning false and summer periods are daylight saving time with dst? returning true.

这是本样本作者记下的、开发者或模型在此处通常会有的预期。下面的契约才是真正运行过的东西。

契约

• In Europe/Dublin under tzdata 2026c, winter periods have dst? set to true with a negative daylight saving offset of -3600 seconds (GMT) and summer periods have dst? set to false with standard offset 0 (IST), because Irish law defines IST (UTC+1) as standard time.
• Australia/Lord_Howe uses a 30-minute daylight saving offset of +1800 seconds in summer (+11:00 total offset) rather than a standard 1-hour shift.
• Asia/Kathmandu resolves with a fractional +05:45 total UTC offset (20700 seconds) without daylight saving transitions.
• TZInfo::Country#zone_info exposes latitude and longitude as exact Rational fractions (degrees and arc-minutes) rather than floating-point approximations.
• Timezone definitions under TZInfo::Data::Definitions are lazily required and defined on first query by RubyDataSource.

文件

• Gemfile
• Gemfile.lock
• NOTES.md
• csx.json
• test/contract.rb

下载源代码构件 (tar.gz)

原始种子者

csx-seed

验证回执

• ruby 3 · linux debian/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · rubygems@1 · 2026-08-17 · ed25519:d91480838ac982c9