Issues

• Incorrect unit overflow handling in Span

  BurntSushi/jiff#660 · Filter by author rpb-ant opened on Oct 15, 2026

• expose jiff::span::SpanArithmetic.relative for easier builder-ing

  BurntSushi/jiff#653 · Filter by author jessekrubin opened on Sep 25, 2026

• Zoned does not round trip ser/des if using non-whole-minute offsets.

  BurntSushi/jiff#652 · Filter by author FHTMitchell opened on Sep 23, 2026

• No way to clear the cached system time zone.

  BurntSushi/jiff#651 · Filter by author svc-devel opened on Sep 23, 2026

• Get all dependencies to syn v3

  BurntSushi/jiff#650 · Filter by author xtqqczze opened on Sep 21, 2026
  7

• Timestamp::from_nanosecond panics instead of returning an error when the result is outside of a Timestamp

  BurntSushi/jiff#645 · Filter by author sorairolake opened on Aug 28, 2026
  1

• optional defmt dependency pulls bitflags + 4 more crates into every consumer's Cargo.lock

  BurntSushi/jiff#643 · Filter by author 330am opened on Aug 27, 2026

• Parsing a leap second timestamp can make it sort before a non-leap second timestamp

  BurntSushi/jiff#642 · Filter by author avsaase opened on Aug 26, 2026

• Copy paste bug in crates/jiff/src/error/tz/zic.rs

  BurntSushi/jiff#639 · Filter by author qarmin opened on Aug 14, 2026

• Benchmarks do not capture varying performance based on datetime data set distributions

  BurntSushi/jiff#638 · Filter by author benjoffe opened on Aug 13, 2026
  1

• Why does enabling tzdb-bundle-always not disable lookups of the system time zone database if tzdb-zoneinfo is enabled?

  BurntSushi/jiff#637 · Filter by author avsaase opened on Aug 11, 2026

• Invalid Gregorian dates can be constructed (historical edge case)

  documentation
  BurntSushi/jiff#630 · Filter by author mrec opened on Aug 6, 2026
  3

• Subtracting two Timestamps probably should return a SignedDuration instead of a Span

  breaking changeenhancementrollup
  BurntSushi/jiff#629 · Filter by author BurntSushi opened on Aug 5, 2026

• Cannot use jiff types in Option field with sqlx::query_as! macro

  BurntSushi/jiff#625 · Filter by author mfelsche opened on Aug 4, 2026
  2

• make Span use &self consistently

  breaking changeenhancementrollup
  BurntSushi/jiff#624 · Filter by author BurntSushi opened on Aug 3, 2026

• Expose bundled IANA tzdb version as a public constant

  BurntSushi/jiff#618 · Filter by author dickermoshe opened on Jul 29, 2026
  5

• Feat: enable custom TimeZone implementations

  enhancementquestion
  BurntSushi/jiff#590 · Filter by author WhyNotHugo opened on Jun 23, 2026
  4

• consider imposing a hard limit on the length of IANA time zone database identifiers

  breaking change
  BurntSushi/jiff#586 · Filter by author BurntSushi opened on Jun 18, 2026
  1

• Android: outdated tzdata used due to missing APEX/updated path lookup

  question
  BurntSushi/jiff#582 · Filter by author caruschalalamove opened on Jun 2, 2026
  8

• clarify specification overlap in the table of examples in the jiff::fmt module documentation

  documentation
  BurntSushi/jiff#545 · Filter by author BurntSushi opened on Apr 30, 2026
  1

• Big increases in file size after v0.2.16

  question
  BurntSushi/jiff#542 · Filter by author curiousdannii opened on Apr 24, 2026
  5

• rethink how compound specifiers work in strtime APIs

  breaking change
  BurntSushi/jiff#513 · Filter by author BurntSushi opened on Feb 12, 2026

• jiff::tz::Offset::saturating_add will always saturate when adding 1.day()

  breaking change
  BurntSushi/jiff#499 · Filter by author BurntSushi opened on Feb 5, 2026
  3

• audit jiff::fmt::strtime::BrokenDownTime API

  breaking changeenhancementrollup
  BurntSushi/jiff#495 · Filter by author BurntSushi opened on Feb 3, 2026

• expose the concept of "primary" time zone identifier in Jiff

  enhancement
  BurntSushi/jiff#483 · Filter by author BurntSushi opened on Jan 13, 2026