Every change that can affect a result, such as a corrected rule, a new holiday calendar or an updated data file, gets a dated entry below. The rules themselves are explained in the methodology.
Changelog
This changelog is a public record of changes to Chronira's calculation rules, calendars and data files, newest first. If a result changes, the reason should appear here.
- October 6, 2026 First release: Hijri date and converter (Umm al-Qura), age, days between dates, date calculator, business days (France and US federal holidays), time calculator, work hours, time card, week numbers, countdowns and online timers.