
JulianBar
Julian date & week in menu bar
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Free
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About
JulianBar puts the Julian date and the ISO week number on your iPhone — in the app, on your Home Screen and on your Lock Screen — so you never have to work it out or look it up again.
If you work with JD Edwards EnterpriseOne, AS/400 or IBM i systems, logistics schedules, manufacturing calendars or anything else that counts days as CYYDDD or DDD, you already know the pain: every date in the system is a Julian number, every date on your calendar is not. JulianBar closes that gap with a single glance.
WIDGETS
• Home Screen widgets (small and medium) showing today's JDE Julian date, ISO week and day of year
• Lock Screen widgets (circular, rectangular and inline) so the Julian date is visible without unlocking
• Widgets update themselves at midnight
IN THE APP
• Today's JDE Julian date — tap it to copy
• Full date, ISO week number, day of year and days remaining
• Julian → Date: type any CYYDDD number to see its calendar date, week and day of year
• Date → Julian: pick any date to get its Julian number, with one-tap copy
DETAILS THAT MATTER
• ISO 8601 weeks: weeks start on Monday, week 1 contains the first Thursday of the year — the standard used across Europe and in most ERP systems
• Native Swift and WidgetKit
• Also available for Mac, where it lives in the menu bar next to the clock
JulianBar is a focused, single-purpose utility. It does one thing and stays out of the way.
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What's New in JulianBar
1.0
November 4, 2026

