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@dependabot dependabot bot commented on behalf of github Jan 19, 2026

Bumps time from 0.3.44 to 0.3.45.

Release notes

Sourced from time's releases.

v0.3.45

See the changelog for details.

Changelog

Sourced from time's changelog.

0.3.45 [2026-01-13]

Added

  • time::format_description::StaticFormatDescription type alias for &'static [BorrowedFormatItem<'static>]. This is the type returned by the time::macros::format_description! macro.

Changed

  • The minimum supported Rust version is now 1.83.0.
  • All floating point methods on Duration are now const fn.
  • All setters on Parsed are now const fn.
  • The serde dependency has been replaced with serde_core, This reduces compile times by not including unused parts of serde.
  • Date::from_julian_day uses a new algorithm, resulting in an approximately 16% performance improvement. This method is used internally by numerous other methods.
  • util::is_leap_year uses a new algorithm, resulting in an approximately 8% performance improvement.
Commits
  • d41b5e1 v0.3.45 release
  • 69db9fb Add noop to utils benchmark
  • 30ba933 Change from_julian_day algorithm
  • 267d847 Change leap year algorithm
  • 41e21ef Make util tests more opaque
  • 8f5981a Test whether every year 0-399 is leap year
  • 6365c4c Improve accuracy of Date benchmarks
  • a4fc845 Dependency upgrade
  • c468474 Rename lints for latest rustc
  • 037af66 Add type alias for format_description! output
  • Additional commits viewable in compare view

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Bumps [time](https://github.com/time-rs/time) from 0.3.44 to 0.3.45.
- [Release notes](https://github.com/time-rs/time/releases)
- [Changelog](https://github.com/time-rs/time/blob/main/CHANGELOG.md)
- [Commits](time-rs/time@v0.3.44...v0.3.45)

---
updated-dependencies:
- dependency-name: time
  dependency-version: 0.3.45
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot bot added dependencies Pull requests that update a dependency file rust Pull requests that update Rust code labels Jan 19, 2026
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Benchmark Results

Details
Benchmark Current: 37bf20d Previous: f08c853 Performance Ratio
startup_benchmark Build Time 98.42 s 98.84 s 1.00
startup_benchmark File Size 0.87 MB 0.82 MB 1.06
Startup Time - 1 core 0.93 s (±0.03 s) 0.93 s (±0.03 s) 1.00
Startup Time - 2 cores 0.93 s (±0.03 s) 0.93 s (±0.03 s) 1.00
Startup Time - 4 cores 0.94 s (±0.03 s) 0.96 s (±0.03 s) 0.98
multithreaded_benchmark Build Time 97.91 s 100.17 s 0.98
multithreaded_benchmark File Size 0.97 MB 0.96 MB 1.00
Multithreaded Pi Efficiency - 2 Threads 88.47 % (±8.28 %) 85.80 % (±7.38 %) 1.03
Multithreaded Pi Efficiency - 4 Threads 44.30 % (±3.72 %) 43.00 % (±2.59 %) 1.03
Multithreaded Pi Efficiency - 8 Threads 25.97 % (±2.52 %) 24.91 % (±1.83 %) 1.04
micro_benchmarks Build Time 98.59 s 99.56 s 0.99
micro_benchmarks File Size 0.97 MB 0.97 MB 1.00
Scheduling time - 1 thread 68.54 ticks (±3.43 ticks) 67.78 ticks (±4.36 ticks) 1.01
Scheduling time - 2 threads 41.68 ticks (±6.08 ticks) 39.88 ticks (±5.99 ticks) 1.05
Micro - Time for syscall (getpid) 3.12 ticks (±0.37 ticks) 4.08 ticks (±0.55 ticks) 0.76
Memcpy speed - (built_in) block size 4096 65698.18 MByte/s (±46792.63 MByte/s) 64150.36 MByte/s (±45634.26 MByte/s) 1.02
Memcpy speed - (built_in) block size 1048576 29420.43 MByte/s (±24226.82 MByte/s) 29347.49 MByte/s (±24147.04 MByte/s) 1.00
Memcpy speed - (built_in) block size 16777216 24937.83 MByte/s (±21029.90 MByte/s) 26394.95 MByte/s (±22121.46 MByte/s) 0.94
Memset speed - (built_in) block size 4096 66465.02 MByte/s (±47357.01 MByte/s) 64755.14 MByte/s (±46028.31 MByte/s) 1.03
Memset speed - (built_in) block size 1048576 30229.81 MByte/s (±24699.16 MByte/s) 30098.70 MByte/s (±24584.02 MByte/s) 1.00
Memset speed - (built_in) block size 16777216 25713.13 MByte/s (±21531.27 MByte/s) 27152.51 MByte/s (±22576.73 MByte/s) 0.95
Memcpy speed - (rust) block size 4096 60621.37 MByte/s (±44468.75 MByte/s) 58384.30 MByte/s (±42648.70 MByte/s) 1.04
Memcpy speed - (rust) block size 1048576 29267.79 MByte/s (±24120.03 MByte/s) 29218.03 MByte/s (±24066.86 MByte/s) 1.00
Memcpy speed - (rust) block size 16777216 24423.29 MByte/s (±20459.00 MByte/s) 24896.19 MByte/s (±20873.79 MByte/s) 0.98
Memset speed - (rust) block size 4096 61312.75 MByte/s (±44924.44 MByte/s) 59088.78 MByte/s (±43122.52 MByte/s) 1.04
Memset speed - (rust) block size 1048576 29999.29 MByte/s (±24561.05 MByte/s) 29992.09 MByte/s (±24518.67 MByte/s) 1.00
Memset speed - (rust) block size 16777216 25211.17 MByte/s (±20983.30 MByte/s) 25684.30 MByte/s (±21389.12 MByte/s) 0.98
alloc_benchmarks Build Time 97.02 s 91.29 s 1.06
alloc_benchmarks File Size 0.94 MB 0.89 MB 1.05
Allocations - Allocation success 100.00 % 100.00 % 1
Allocations - Deallocation success 100.00 % 100.00 % 1
Allocations - Pre-fail Allocations 100.00 % 100.00 % 1
Allocations - Average Allocation time 8387.30 Ticks (±207.02 Ticks) 6023.01 Ticks (±94.40 Ticks) 1.39
Allocations - Average Allocation time (no fail) 8387.30 Ticks (±207.02 Ticks) 6023.01 Ticks (±94.40 Ticks) 1.39
Allocations - Average Deallocation time 950.59 Ticks (±247.30 Ticks) 736.45 Ticks (±86.26 Ticks) 1.29
mutex_benchmark Build Time 91.78 s 92.20 s 1.00
mutex_benchmark File Size 0.97 MB 0.97 MB 1.00
Mutex Stress Test Average Time per Iteration - 1 Threads 12.58 ns (±0.70 ns) 12.50 ns (±0.64 ns) 1.01
Mutex Stress Test Average Time per Iteration - 2 Threads 12.80 ns (±0.85 ns) 13.18 ns (±0.79 ns) 0.97

This comment was automatically generated by workflow using github-action-benchmark.

@mkroening mkroening added this pull request to the merge queue Jan 20, 2026
Merged via the queue into main with commit 0a04361 Jan 20, 2026
19 checks passed
@dependabot dependabot bot deleted the dependabot/cargo/time-0.3.45 branch January 20, 2026 08:19
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