World clock
Compare live city times, arrange your own clock collection and switch between digital and written time.
AvailableAll tools
World clocks, New Year countdowns, festival calendars and city guides.
CityTimeDate · 37
City time
Find a city and explore its current time, daylight, time zone and locally relevant information.
AvailableUTC & GMT clock
Read Coordinated Universal Time and compare it with your selected city without confusing a browser clock with an atomic clock.
AvailableTime zone directory
Look up IANA time zones, country regions and ambiguous abbreviations for a selected date.
AvailableTime zone map
Explore real geographic time zone regions, city markers and UTC offsets at one selected instant.
AvailableTime zone converter
Convert a local date and time between cities, including skipped and repeated daylight-saving times.
AvailableMeeting planner
Find a suitable meeting time across cities, compare working hours and export a calendar invitation.
AvailableEvent time
Publish a single event instant and show what that moment means in other cities.
AvailableDaylight saving time
Inspect actual clock changes and UTC offsets for a city and year using versioned IANA rules.
AvailableEmbed a clock
Build a lightweight city clock that can be embedded in another website.
AvailableYear & month calendar
Browse Gregorian years and months, choose among three week-numbering rules and set the week start.
AvailableCalendar builder
Create a printable calendar, customize its layout and add a logo without uploading it.
AvailablePersonal calendar
Keep personal events in this browser and export a portable calendar backup.
AvailablePublic holidays
Explore supported national and regional holidays with sources and verification dates.
AvailableDays Between Dates & Time Difference Calculator
Count days between dates only, or calculate real elapsed time between zoned date-times. Only dates-only mode can include both endpoints.
AvailableBusiness days
Count or add working days with configurable weekends and your own excluded dates.
AvailableAdd or subtract dates
Add calendar years, months and days with an explicit month-end policy, or add elapsed time.
AvailableWeekday calculator
Find the weekday of a Gregorian date and follow the Doomsday mental calculation.
AvailableWeek number
Find a week number and date range using ISO, Sunday-start or Monday-start rules.
AvailableRoman numerals
Convert whole numbers from 1 to 3999 to standard Roman numerals, or convert them back.
AvailableAge calculator
Calculate calendar age, elapsed days and your next birthday at a chosen reference date.
AvailableDate patterns
Search a bounded date range for palindromes and repeating patterns in a chosen format.
AvailableDistance & nearby cities
Estimate great-circle distance, initial bearing and nearby cities from coordinates.
AvailableMultiple timers
Run up to ten independent timers with presets, alerts and local saving.
AvailableStopwatch
Measure elapsed time, record laps and export your timing results.
AvailableCountdown
Create a time-zone-aware countdown for your own event, New Year or a holiday.
AvailableSunrise & sunset
Calculate solar rise, set and twilight times for your chosen city and date.
AvailableMoonrise & moonset
Explore lunar rise, set, position and distance using verified astronomical calculations.
AvailableMoon phases
Browse lunar phases and locally displayed phase times.
AvailableNight sky
Explore stars and planets for a location and time, with a text alternative.
AvailableMeteor showers
Plan around verified major meteor showers and understand viewing limitations.
PlannedDay & night map
Explore daylight and moonlight geometry at a selected instant.
AvailableEclipses
Explore solar and lunar eclipses, local visibility, event times and validated shadow maps.
PlannedSeasons & equinoxes
Find astronomical equinoxes and solstices and distinguish them from meteorological seasons.
AvailableWeather observations
Read nearby weather-station observations, with station distance and freshness clearly shown.
AvailableToday, tomorrow & hourly weather forecast
Explore MET Norway city forecasts with local times, temperature trends, precipitation intervals and clearly identified missing data.
AvailableWeather history
Explore supported station history and climate statistics with missing data identified.
PlannedNo matching results.