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World Time Lab
  • 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.
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  • 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 sectionPlanet Lab
Lab
  • Planet Simulator
Climate & habitability
  • Snowball Earth
  • Runaway Greenhouse
  • Melt the Ice Caps
  • Tidally Locked Planet
Spin, orbit & sky
  • Earth Stops Spinning
  • Fast-Spinning Earth
  • Earth With Uranus's Tilt
  • Earth Loses the Moon
  • Red Giant Sun
Build a world
  • Super-Earth
  • Planet With Rings
Impacts & oceans
  • Asteroid Impact
  • Mega-Tsunami
Home/Planet Lab/Steal the Moon

๐ŸŒ‘ Steal the Moon

Remove Earth's visible Moon; tides and long-term tilt changes remain context.

The Moon disappears; tides and axial drift do not run.

Building the laboratory: star, orbit, planet, atmosphere...

What actually happens

The Moon raises much of Earth's ocean tide and influences the long-term stability of Earth's axial tilt. If it vanished, solar tides would remain and changes to axial behavior would unfold over very long timescales rather than overnight.

In this scenario the Moon count is set to zero, so the Moon and its orbit disappear from the rendering. The orbit, present axial tilt, ocean level, and global climate calculation otherwise stay at their Earth values.

Tidal amplitudes, biological effects, night brightness, and chaotic tilt evolution are not computed. They are reasons scientists care about large moons, not outputs of this experiment.

Cause and effect

How the simulation unfolds

Each step is labeled so you can tell a calculated result from an explanatory visual or wider scientific context.

  1. 1
    Changed input

    Set the moon count to zero

    The planet keeps Earth's other inputs while its only moon is removed.

  2. 2
    Computed

    The satellite count changes

    The current configuration and dependent labels now report no moons.

  3. 3
    Illustrated

    The Moon leaves the scene

    The rendered satellite and moon-orbit guide disappear.

  4. 4
    Scientific context

    Long-term effects need another model

    Tides and axial stability are scientifically relevant consequences, but they are not calculated here.

Model transparency

What is computed, illustrated, and not modeled

Computed

Calculated by the lab

  • Moon count in the selected configuration
Illustrated

Shown to explain the result

  • Removal of the Moon and its orbit guide
Not modeled

Outside this model

  • Ocean tides
  • Night-sky brightness
  • Long-term obliquity stability

Model scope: Only the moon count and rendering change. The experiment has no tidal or axial-evolution solver.

More experiments

  • ๐Ÿฅถ Snowball Earth
  • ๐Ÿ”ฅ Runaway greenhouse
  • ๐Ÿ›‘ Stop the spin
  • ๐Ÿ™ƒ Tip it on its side
  • โ˜€๏ธ Age the Sun
  • ๐Ÿ’ช Super-Earth
  • ๐Ÿ‘๏ธ Eyeball world
  • ๐Ÿ’ Give Earth rings
  • Open the Planet Lab
World clock globeTime zone converterMeeting Time FinderTime by countryTime by cityConverter pagesSunrise and sunsetMoon phasesEclipsesSeasonsPlanet LabCalendarPrintable calendar makerDate calculatorsCountdownsTimerStopwatchReaction timeDistanceEmbeddable widget
AboutMethodology & data sourcesReport an errorContactPrivacyCookiesTerms

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.

ยฉ 2026 World Time Lab ยท 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 ยฉ 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). World Time Lab v2026.7.5.