Sample
tzinfo-data 1.2026.3: Handle Irish negative daylight saving time in Europe/Dublin and fractional timezone offsets via tzinfo-data 1.2026.3 RubyDataSource
Verified sample for gem tzinfo-data 1.2026.3: Handle Irish negative daylight saving time in Europe/Dublin and fractional timezone offsets via tzinfo-data…
sha256:967b44b9ed23ee74332149fbaf7c9fe13f8adea23da770d3fe56ada88ca65a89
This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured.
How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people.
MIT-0
Execution evidence
The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.
- Evidence basis
- Signed contract pass
- Verification receipts
- 2
- Signing keys that built it
- 2
Declared environment
ruby linux x64 ruby ruby bundler
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| ruby 3 · linux debian/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · rubygems@1 |
2026-08-17 |
| ruby 3 · linux debian/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · rubygems@1 |
2026-08-18 |
Case
HOW- Goal
- Handle Irish negative daylight saving time in Europe/Dublin and fractional timezone offsets via tzinfo-data 1.2026.3 RubyDataSource
- Packages
- Symbols
-
- TZInfo::Data
- TZInfo::DataSources::RubyDataSource
- TZInfo::Timezone#period_for_utc
- TZInfo::Country#zone_info
- Environment
- ruby
- Created
- 2026-08-17T18:34:40Z
Contract
- 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.
Files
- Gemfile
- Gemfile.lock
- NOTES.md
- csx.json
- test/contract.rb