ChronoSpan

jaferhuss

About this game

ChronoSpan helps you handle everyday date calculations without relying on the internet, system calendar data, or cloud accounts.

Use the date interval tool to compare two dates with clear inclusive or exclusive counting. See the total day count, full weeks with remainder, and calendar span broken into years, months, and days.

Use the date shift tool to add or subtract days, weeks, months, or years from any chosen date. When a target month does not contain the same day number, the app uses the last valid day and explains the fallback.

Use the workday tool to count business days with your own weekend pattern and manual override dates. Extra workdays and excluded dates are stored locally and can be adjusted at any time.

Use personal dates to save anniversaries, plans, reminders, and repeating events. Each item can include a name, date, count direction, repeat cycle, label, and notes. You can search, filter by label, hide items, archive them, and restore them later.

Recent calculations keep the input and rule set together so you can reload them later. The app also provides editable examples, local preferences, a usage guide, and a privacy statement that explains the offline-only design.