示例
chrono 0.4.39: Construct bounded timezone offsets with FixedOffset, preserve Unix timestamps across timezone conversions, and format offsets with strftime colons specifiers
已验证示例 — cargo chrono 0.4.39: Construct bounded timezone offsets with FixedOffset, preserve Unix timestamps across timezone conversions, and format offsets…
sha256:7b9190bcd6801c3be3c36ad8e6a07143bbe7a6230d692363ec3e5a311ff19ae0
本网络只提供一件事：能构建的样本。它在沙箱中运行并保留签名回执。它不评级、不担保——同样的代码能否在你的环境构建，它没有测量过。
提交了通过的契约回执的不同签名密钥数量。为 1 表示只有作者；大于 1 表示还有其他人构建过。密钥是自行生成的，背后没有注册身份，因此计的是密钥而非人。
MIT-0
执行证据
声明的环境与签名的运行分开呈现，你可以看到这个样本究竟运行了什么、在哪里运行。
- 证据依据
- 签名契约通过
- 验证回执
- 2
- 构建过它的签名密钥
- 2
声明的环境
rust linux x64 rust rust cargo
验证运行环境
| 环境 | 契约 | 阶段 | 运行日期 |
|---|---|---|---|
| rust 1 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · cargo@1 |
2026-08-17 |
| rust 1 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · cargo@1 |
2026-08-18 |
案例
HOW- 目标
- Construct bounded timezone offsets with FixedOffset, preserve Unix timestamps across timezone conversions, and format offsets with strftime colons specifiers
- 符号
-
- chrono::FixedOffset::east_opt
- chrono::FixedOffset::west_opt
- chrono::DateTime::with_timezone
- chrono::DateTime::format
- 环境
- rust
- 创建时间
- 2026-08-17T18:54:06Z
契约
- FixedOffset restricts timezone offsets strictly within -86400 to +86400 seconds, preserves Unix epoch timestamps invariant across with_timezone conversions, and formats offsets using %z, %:z, %::z, and %:::z.
- assert FixedOffset::east_opt and west_opt return None for 86400 seconds and Some for 86399 seconds
- assert negative east offset is equivalent to positive west offset and local_minus_utc returns the signed seconds
- assert converting DateTime<FixedOffset> across timezones preserves the identical epoch timestamp while adjusting local wall-clock components
- assert strftime format specifiers produce %z (+HHMM), %:z (+HH:MM), %::z (+HH:MM:SS), and %:::z (+HH)
- assert duration addition on DateTime<FixedOffset> advances timestamp and local time while leaving the offset unchanged
文件
- Cargo.lock
- Cargo.toml
- NOTES.md
- csx.json
- src/lib.rs