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Weather & Climate

Current WeatherToday's conditions and the forecast ahead.Weather Search10 years of hourly history for any city, postal code or coordinates.City ComparisonPut two climates side by side.Trip Weather PlannerForecast plus historical odds for your destination and travel dates.Event & Wedding PlannerWeather odds, golden hour and moon phase for an outdoor event date.Outdoor Activity WindowBest upcoming times to walk, run, cycle or sightsee, from the live forecast.Best Time to VisitRank a city's months, or find destinations for a month, by your own comfort preferences.Relocation Climate MatchFind cities with a year-round climate like one you already know.IndustriesClimate risk profiles for agriculture, energy, insurance and more.Custom ReportsA PDF climate report built for one specific decision.Data CatalogBrowse and download the historical archive by country and city.Journalist & Teacher Data DeskCitation-ready climate data and trends for reporting and education.

Time & Zones

World ClockCurrent local time in any city, worldwide.Time Zone ConverterCompare and convert times across zones.Time DifferenceHours ahead or behind between a location and the world.Time Zone MapEvery UTC offset in use right now, live.Time Zone AbbreviationsCommon abbreviations like PST, CET, and JST explained.Daylight Saving TimeWho observes DST, and when clocks change.Meeting PlannerFind overlapping working hours across time zones.Event Time AnnouncerShare a global event's time in everyone's local zone.Stopwatch & TimerPrecise stopwatch and countdown timer.

Calendar & Dates

CalendarMonth view with holidays and your events.Printable CalendarPrint or save a year or month calendar with holidays.Countdown to DateCount down to any date and time.HolidaysPublic holidays by country and year.Calendar BasicsMonths, weekdays, and the leap year rule explained.

Calculator

Days Between DatesThe exact number of days between two dates, broken into weeks and days.Business Days CalculatorCount working days between two dates, excluding holidays if you like.Add or Subtract DaysAdd or subtract days, weeks, months, or years from a date.Add Business DaysFind the date a given number of working days from today or any date.Weekday CalculatorWhat day of the week any past or future date falls on.Week Number CalculatorThe ISO week number for any date.Roman Numeral ConverterConvert any calendar date into Roman numerals.Special Age CalculatorYour age in weeks, days, hours, and minutes, live.Age CalculatorExact age in years, months, and days from a birth date.Distance CalculatorThe straight-line distance between any two cities.

Sun, Moon & Space

Sun CalculatorSunrise, sunset, solar noon, and day length for any place.Moon CalculatorMoon phase, moonrise, and moonset for any place.Moon PhasesA month-by-month calendar of moon phases.Night SkyWhat's visible above the horizon tonight.Meteor ShowersMajor annual meteor showers, ordered by peak date.Day and Night MapWhich longitudes are in daylight right now.Moon Light World MapWhere the moon is above the horizon right now.EclipsesThe next solar and lunar eclipses worldwide.Live StreamsLive views of the sun, moon, and sky.SeasonsEquinox and solstice dates, year by year.Astronomy NewsThe latest astronomy and space news.

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Weather & Climate

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Time & Zones

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Calendar & Dates

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Calculator

Days Between Dates Business Days Calculator Add or Subtract Days Add Business Days Weekday Calculator Week Number Calculator Roman Numeral Converter Special Age Calculator Age Calculator Distance Calculator

Sun, Moon & Space

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Home /World Clock /Guam

Time in Guam

Current local time for 6 cities in Guam. Pick a city below, or use the world clockto compare several at once.

More cities in Guam

Dededo Village Yigo Village Tamuning-Tumon-Harmon Village Tamuning Mangilao Village Hagatna

Historical weather and a full suite of time, zone, calendar and sky tools — for any place on Earth.

Weather & ClimateWeather Search City Comparison Trip Weather Planner Event & Wedding Planner Outdoor Activity Window Relocation Climate Match Best Time to Visit Industries Custom Reports Data Catalog Data Desk

Time & ZonesWorld Clock Time Zone Converter Time Difference Time Zone Map Time Zone Abbreviations Daylight Saving Time Meeting Planner Event Time Announcer Stopwatch & Timer

Calendar & DatesCalendar Printable Calendar Countdown to Date Holidays Calendar Basics

CalculatorDays Between Dates Business Days Calculator Add or Subtract Days Add Business Days Weekday Calculator Week Number Calculator Roman Numeral Converter Special Age Calculator Age Calculator Distance Calculator

Sky & WeatherSun Calculator Moon Calculator Moon Phases Night Sky Meteor Showers Day and Night Map Moon Light World Map Eclipses Live Streams Seasons Astronomy News Weather

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© 2026 PastClimateSource: ECMWF ERA5 reanalysis (hourly, 0.25°)