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Date & Time

Clocks, timers, time zones, schedules and date calculations.

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42 Tools

  1. Add Or Subtract Dates CalculatorMove a calendar date by years, months, weeks and days with reliable end-of-month handling.Date & Time
  2. Age CalculatorCalculate age or the exact difference between two dates in years, months, weeks, days, hours, minutes and seconds.Date & Time
  3. Atomic ClockView a precise device-clock display for UTC, local time and major world zones with milliseconds, ISO time, Unix time and a truthful NIST-F4 reference.Date & Time
  4. Business Days CalculatorCount working days between dates or add and subtract workdays with custom weekends and excluded holidays.Date & Time
  5. Calendar GeneratorCreate a clean printable monthly calendar with Sunday or Monday week starts, notes and PDF export.Date & Time
  6. Chess Clock & Multiplayer Game TimerRun two to six player clocks with Fischer increment, simple delay, Bronstein refund, face-to-face display and exportable move logs.Date & Time
  7. Countdown Day ClockLive countdown to Christmas, Halloween, Thanksgiving and more — or any date you pick — down to the second.Date & Time
  8. Countdown TimerSet a custom hours/minutes/seconds timer or count down to a date — with a big display you can pop out into a resizable window and scale full-screen.Date & Time
  9. Date CalculatorAdd or subtract years, months, weeks and days from any date to find a future or past date.Date & Time
  10. Day of Year CalculatorWhich day of the year a date is — ordinal day, days remaining, leap-year status and a year-progress bar.Date & Time
  11. Fasting TimerRun a persistent wall-clock fasting schedule with flexible targets, a completion chime and private local history.Date & Time
  12. Flight Time & Arrival CalculatorEstimate airborne and gate-to-gate time from airport coordinates, routing, wind and operations, with local arrival times.Date & Time
  13. Habit TrackerTrack multiple daily habits on a persistent monthly grid with custom colors, completion rates and CSV or PDF export.Date & Time
  14. Hours And Minutes CalculatorAdd or subtract two durations and view clock, decimal-hour, minute and second totals.Date & Time
  15. Hours To Decimal ConverterConvert clock hours, minutes and seconds to decimal hours, or convert decimal hours back.Date & Time
  16. ICS Calendar File Inspector & Event ExporterInspect calendar files without importing them, search event records, review time zones and recurrence rules, and export CSV, JSON or PDF.Date & Time
  17. Jet Lag PlannerTurn an itinerary into destination clocks and a conservative sleep-and-daylight adaptation schedule.Date & Time
  18. Meeting Cost CalculatorBuild a role-based meeting cost with payroll burden, preparation time, recurrence, participant hours and a live session counter.Date & Time
  19. Meeting Time PlannerCompare one meeting instant across organizer and participant time zones.Date & Time
  20. Military Time ConverterConvert between 12-hour, 24-hour and four-digit military time, including midnight, noon, pronunciation and optional zone letters.Date & Time
  21. Online Alarm ClockArm a local browser alarm for the next occurrence or selected repeat days.Date & Time
  22. Online CalendarPlan local dated events in a monthly calendar and export a standard ICS file.Date & Time
  23. Pomodoro TimerRun focus sessions and breaks with configurable lengths, rounds, auto-start, chimes and a live page-title countdown.Date & Time
  24. Project Time TrackerTime your work by project and task with one-click start and stop, daily and weekly reports, billable rates and CSV timesheets — private to this device.Date & Time
  25. Random Date GeneratorGenerate a random date between two dates in your chosen format.Date & Time
  26. Shooting Schedule & Call Sheet BuilderBreak down scenes, arrange a stripboard, plan shoot days and prepare selected-day call sheets and daily production actuals.Date & Time
  27. SMPTE Timecode Calculator & Drop-Frame ConverterInspect, offset, compare and convert SMPTE-style timecodes across common drop-frame and non-drop frame rates.Date & Time
  28. StopwatchA precise online stopwatch with lap times, fastest/slowest highlighting, full-screen mode and a pop-out window that scales to any size.Date & Time
  29. Study Time Calculator & PlannerAllocate study time by deadline and difficulty, place recommended sessions on a monthly calendar and run focused blocks with the built-in timer.Date & Time
  30. Sun & Moon Sunlight PlannerPlan sunrise, sunset, twilight and golden-hour windows with moon illumination and calendar exports.Date & Time
  31. Teleprompter ProA full prompting studio with run-of-show navigation, target-runtime pacing, optional cue stops, voice follow, recording and remote output.Date & Time
  32. Time CalculatorAdd or subtract hours, minutes and seconds, or find the duration between two dates and times.Date & Time
  33. Time ConverterConvert between seconds, minutes, hours, days, weeks, months and years instantly.Date & Time
  34. Time Zone CalculatorConvert a specific date and time from one time zone to another, with daylight saving handled.Date & Time
  35. Time Zone ConverterSee a chosen time across major world time zones at a glance.Date & Time
  36. Timecard CalculatorAdd up weekly work hours from clock-in/out times with breaks, and calculate pay from an hourly rate.Date & Time
  37. Unix Epoch ConverterConvert Unix seconds or milliseconds to UTC and local time, or convert a local datetime back.Date & Time
  38. Unix Timestamp ConverterConvert between Unix timestamps (epoch) and human-readable dates in both directions.Date & Time
  39. Video Script TimerEstimate, rehearse and read scripts for podcasts, YouTube, television, documentaries, films, commercials and presentations.Date & Time
  40. Week Number CalculatorThe ISO 8601 and US week number for any date, with the week's date range and the year's week count.Date & Time
  41. Weight Loss Timeline CalculatorMap a gradual weekly weight-change assumption to milestone dates while keeping uncertainty explicit.Date & Time
  42. Working Days CalculatorCount workdays between dates with editable weekends, holidays and endpoint rules.Date & Time