Day of year (lite)
ClientJulian day-of-year for reporting.
Day of year (1–366)
Uses Gregorian leap-year rules for the given YYYY-MM-DD date. Processing runs in your browser—Toolcore does not need your paste for the core operation on this page.
Calendar math uses local date parsing—confirm timezone for audit logs.
How to use
Paste or type in the main field, then read the output below. Use Load example when available, or open the page with ?q= / ?qb= so tickets and agents share the same input.
Nearby workflows on Toolcore
- Day of year (1–366) — Ordinal day number within the calendar year. Useful when the same instant should appear as epoch or ISO.
- Day of year — Ordinal day (1–366) for a calendar date. Useful when the same instant should appear as epoch or ISO.
- Unix timestamp converter — Epoch to date: seconds, milliseconds, ISO-8601, UTC and local time—in browser. Useful when the same instant should appear as epoch or ISO.
- Cron expression helper — Human-readable schedule, next run times—standard 5-field cron in your browser. Useful when the same instant should appear as epoch or ISO.
Common use cases
- Day of year (lite) for quick local checks without uploading data.
- Copy results into tickets, docs, or classroom notes.
Common mistakes to avoid
Unexpected input shape
See the intro and how-to notes for accepted formats.
FAQ
Is processing local?
Yes—this runs entirely in your browser.
Agent prefill?
Use q or qb for the main text field when supported.
More tools
Related utilities you can open in another tab—mostly client-side.
Day of year (1–366)
ClientOrdinal day number within the calendar year.
Day of year
ClientOrdinal day (1–366) for a calendar date.
Unix timestamp converter
ClientEpoch to date: seconds, milliseconds, ISO-8601, UTC and local time—in browser.
Cron expression helper
ClientHuman-readable schedule, next run times—standard 5-field cron in your browser.