THE TOOL COLLECTION

Date & Productivity Tools

Plan dates and working days, run timers, compare time zones and make printable calendars privately on your device.

14 available tools Processed on your device

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Free. No sign-up required.

All thirteen date and productivity tools together, with exact calendar rules and local timers.

Add or subtract calendar dates with exact offsets, clear month-end rules and calendar previews.

Count or add working days with your own weekend pattern and optional holiday dates.

Run a private duration countdown with pause/resume, a progress display and optional completion sound.

Measure elapsed time with pause/resume, lap splits and downloadable session reports.

Alternate customizable focus, short-break and long-break sessions with explicit phase controls.

Compare live local dates and times in up to eight named browser-supported time zones.

Compare a meeting across time zones, check a supplied work window and export a UTC calendar event.

Find ISO week dates or explicitly selected Sunday / January 1 week numbers, including year boundaries.

Check Gregorian leap years and list every year in a bounded range with the actual divisibility rule.

Generate printable month or year calendars with custom dates and downloadable HTML / calendar events.

Calculate calendar age, completed months, elapsed days and the next birthday from explicit dates.

Count signed elapsed or inclusive days between two calendar dates, with clear endpoint rules.

Convert a local date and time between IANA time zones.