4 tools
Date and time tools for planning
Work out dates, deadlines and meeting times using your browser's own calendar and time-zone data, including daylight-saving changes.
Date Math Calculator
Add or subtract days, weeks, months and years, or measure between dates.
Date & TimeDays Left + Working Days
Count calendar days and working days until a deadline.
Date & TimeTimezone Overlap Finder
Find shared working hours across several time zones.
Date & TimeWord Goal Calculator
Plan words per day to hit a writing goal by a deadline.
Writing & LimitsCalendar days vs working days
Calendar days count every day; working days skip weekends and any holidays you add. The Days Left calculator shows both so you can plan realistically.
Month edge cases
Adding one month to 31 January lands on the last day of February. The Date Math Calculator handles month ends and leap years instead of overflowing into March.