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World Time Labv2026.7.5
  • Explore time around EarthWorld Clock

    See the live globe, local clocks, and places around the world.

    • Live World ClockExplore day, night, time zones, and pinned places.
    • Time by CitySearch current local time in cities worldwide.
    • Time by CountrySee every civil time zone used by a country.
    • Distance Between CitiesMeasure great-circle distance on a real globe.
    • Day & Night WidgetAdd the live day and night map to another site.
    About & dataAbout World Time LabMethodology & Data SourcesReport an ErrorContact
  • Convert and coordinateTime Zones

    Translate city times, UTC offsets, and abbreviations without guesswork.

    • Time Zone ConverterCompare cities, PST, WAT, UTC offsets, and more in one view.
    • Meeting Time FinderFind working-hour overlap across as many as six locations.
    • Time Zone Conversion ChartsBrowse quick reference tables for common zone pairs.
    About & dataAbout World Time LabMethodology & Data SourcesReport an ErrorContact
  • Follow the skySun & Moon

    Track sunlight, moon phases, eclipses, and the changing seasons.

    • Sunrise & SunsetFind solar times and day length for any listed city.
    • Moon PhasesSee the live Moon, moonrise, moonset, and phase calendar.
    • Solar & Lunar EclipsesExplore upcoming eclipses and local visibility.
    • Equinoxes & SolsticesUnderstand the tilt, sunlight, and season changes.
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  • Plan dates your wayCalendars & Dates

    Build calendars, count days, and answer practical date questions.

    • 2026 CalendarBrowse the full year with week numbers and holidays.
    • Printable Calendar MakerCustomize columns, colors, logos, holidays, PDF, and ICS.
    • Date CalculatorsAdd dates, count days, find weekdays, and check weeks.
    • Days Between DatesCalculate an exact calendar difference.
    • Add or Subtract a DateMove forward or backward by a duration.
    • Days UntilCreate or browse live event countdowns.
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  • Measure every momentTimers

    Count down, measure laps, or test your reaction speed.

    • Online TimerCount down or up with speed, precision, and optional sound.
    • StopwatchMeasure elapsed time and visual lap splits.
    • Reaction Time TestMeasure keyboard or tap response in milliseconds.
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  • Experiment with a worldPlanet Lab

    Change a planet, inspect the physics, and explore what-if scenarios.

    • Planet SimulatorBuild a world and see computed physical changes.
    • All What-If ScenariosBrowse climate, orbit, impact, and ocean experiments.
    • Snowball EarthFollow ice-albedo feedback across Earth.
    • Runaway GreenhouseExplore an illustrated Venus-like end state.
    • Asteroid ImpactReplay a staged impact, shock ring, and crater.
    • Mega-TsunamiWatch teaching wavefronts cross an ocean.
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Explore World Time Lab

Tools & guides

    • Live World Clock
    • Time by City
    • Time by Country
    • Distance Between Cities
    • Day & Night Widget
    • Time Zone Converter
    • Meeting Time Finder
    • Time Zone Conversion Charts
    • Sunrise & Sunset
    • Moon Phases
    • Solar & Lunar Eclipses
    • Equinoxes & Solstices
    • 2026 Calendar
    • Printable Calendar Maker
    • Date Calculators
    • Days Between Dates
    • Add or Subtract a Date
    • Days Until
    • Online Timer
    • Stopwatch
    • Reaction Time Test
    • Planet Simulator
    • All What-If Scenarios
    • Snowball Earth
    • Runaway Greenhouse
    • Asteroid Impact
    • Mega-Tsunami
About & data
About World Time LabMethodology & Data SourcesReport an ErrorContact
In this sectionCalendars & Dates
Calendars
  • 2026 Calendar
  • Printable Calendar Maker
  • 2025 Calendar
  • 2027 Calendar
  • 2028 Calendar
  • 2029 Calendar
  • 2030 Calendar
Date calculators
  • All Date Calculators
  • Days Between Dates
  • Add or Subtract a Date
  • Week Numbers
  • Day of the Week
Countdowns
  • Browse Days-Until Countdowns
Home/Date calculators/Days between dates

Days between two dates

Pick two dates to count the days between them, broken into weeks and working days. Everything is computed on your device.

Pick two dates to compare.

How the count works

The calculator counts calendar-day boundaries between the two dates, so Monday to the following Monday is 7 days, and today to tomorrow is 1 day. The start date itself is not counted; if you need an inclusive count (common for deadlines phrased as "within X days including today"), add 1. Weekday counts include every Monday through Friday after the start date up to and including the end date; public holidays are not subtracted, because they differ by country.

Common questions

Does the count handle leap years?

Yes. The math works on real calendar dates, so February 29 is counted in leap years and skipped otherwise.

Are both dates included?

The difference counts nights between the dates: from a date to itself is 0. For an inclusive day count, add 1 to the result.

Add or subtract from a dateDays until ChristmasAll date calculators
World clock globeTime zone converterMeeting Time FinderTime by countryTime by cityConverter pagesSunrise and sunsetMoon phasesEclipsesSeasonsPlanet LabCalendarPrintable calendar makerDate calculatorsCountdownsTimerStopwatchReaction timeDistanceEmbeddable widget
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World Time Lab shows live day and night across the planet. Sun positions are computed with standard NOAA solar equations, and local times come from your browser's own IANA time zone database, so every calculation on this site runs on your device. This build loads no advertising, no analytics, and no third-party scripts at all, and asks for no account. It never asks where you are unless you press "Use my location" on an eclipse page, and that reading stays in your browser. The privacy page explains what that does and does not cover.

© 2026 World Time Lab · v2026.7.5· this build shipped July 24, 2026. Times are shown to the minute and can differ by a minute or two from horizon observations. Time zone boundaries derived from the timezone-boundary-builder project (ODbL); map shapes from Natural Earth; named administrative boundaries from geoBoundaries gbOpen with source years and licenses varying by country. City search data © GeoNames under CC BY 4.0, transformed for prefix search and updated July 2026. Seasons view climate groups derived from the Kottek et al. Koeppen-Geiger world map (2006).