# Times & Dates

> Free online tools for time zones, world clocks, date calculators, and astronomy. Accurate, easy to use, no account required.

Times & Dates (timesanddates.com) is a collection of interactive time utilities: world clocks, time zone converters, date and duration calculators, sunrise/sunset and moon phase tools, countdowns, timers, and developer-oriented time converters. All tools run in the browser, are free, and update in real time.

Dynamic page patterns an agent may find useful:

- `/time/in/{city}`: current local time, time zone, and DST status for 400+ cities (e.g. `/time/in/london`, `/time/in/tokyo`).
- `/time-between/{city-a}-and-{city-b}`: time difference and overlap between two cities (e.g. `/time-between/new-york-and-london`).
- `/moon-phase/{city}`: current moon phase for a given city.
- `/business-days-between/{start}-and-{end}`: precomputed working-day counts for common date ranges (e.g. `/business-days-between/jan-1-2026-and-dec-31-2026`).
- `/holidays/{slug}`: detail pages for public holidays across 60+ countries (e.g. `/holidays/thanksgiving`, `/holidays/diwali`).

## Time Zones & World Clock

- [World Clock](https://www.timesanddates.com/world-clock): Live current time for cities around the world
- [Time Zone Converter](https://www.timesanddates.com/time-zone-converter): Convert a time between any two time zones
- [Time Zone Difference Calculator](https://www.timesanddates.com/time-zone-difference-calculator): Exact offset between two zones on any date
- [Time Zone Map](https://www.timesanddates.com/time-zone-map): Interactive world map of time zones
- [Time Zone Abbreviation Converter](https://www.timesanddates.com/timezone-abbreviation-converter): Decode abbreviations like EST, IST, CET
- [DST Information](https://www.timesanddates.com/dst-information): Daylight saving time start/end dates by zone
- [UTC Time Now](https://www.timesanddates.com/utc-time-now): Current UTC/GMT time
- [Best Meeting Time Calculator](https://www.timesanddates.com/best-meeting-time-calculator): Find meeting times that work across zones
- [Work Hours Overlap](https://www.timesanddates.com/work-hours-overlap): Overlapping business hours between locations
- [Event Time Announcer](https://www.timesanddates.com/event-time-announcer): Share an event time that displays in each viewer's local zone

## Date & Time Calculators

- [Date Calculator](https://www.timesanddates.com/date-calculator): Add or subtract days, weeks, months from a date
- [Business Days Calculator](https://www.timesanddates.com/business-days): Working days between two dates
- [Days Until](https://www.timesanddates.com/days-until): Days remaining until a future date
- [Countdown](https://www.timesanddates.com/countdown): Live countdown to any date and time
- [Age Calculator](https://www.timesanddates.com/age-calculator): Exact age in years, months, days
- [Week Number](https://www.timesanddates.com/week-number): ISO week number for any date
- [Day of Week Calculator](https://www.timesanddates.com/day-of-week-calculator): Weekday for any date
- [Time Duration Calculator](https://www.timesanddates.com/time-duration-calculator): Elapsed time between two times or dates
- [Leap Year Calculator](https://www.timesanddates.com/leap-year-calculator): Check whether a year is a leap year
- [Date Pattern Calculator](https://www.timesanddates.com/date-pattern-calculator): Find palindrome and repeating dates
- [Doomsday Calculator](https://www.timesanddates.com/doomsday-calculator): Weekday via the doomsday algorithm
- [Schengen Calculator](https://www.timesanddates.com/schengen-calculator): 90/180-day rule tracking for Schengen travel
- [Retirement Countdown](https://www.timesanddates.com/retirement-countdown): Time remaining until a retirement date
- [Sobriety Calculator](https://www.timesanddates.com/sobriety-calculator): Time elapsed since a sobriety date
- [Life in Weeks](https://www.timesanddates.com/life-in-weeks): Visualize a lifespan as a grid of weeks
- [Life Expectancy Calculator](https://www.timesanddates.com/life-expectancy-calculator): Estimated remaining time by demographics
- [Time Budget Calculator](https://www.timesanddates.com/time-budget-calculator): Allocate weekly hours across activities
- [Time Dilation Calculator](https://www.timesanddates.com/time-dilation-calculator): Relativistic time dilation by velocity or gravity
- [Planetary Age Calculator](https://www.timesanddates.com/planetary-age-calculator): Your age on other planets
- [Jet Lag Calculator](https://www.timesanddates.com/jet-lag-calculator): Recovery plan for crossing time zones
- [On This Day](https://www.timesanddates.com/on-this-day): Historical events, births, and deaths by date

## Converters & Formats

- [Unix Timestamp Converter](https://www.timesanddates.com/unix-timestamp): Epoch seconds to readable dates and back
- [Military Time Converter](https://www.timesanddates.com/military-time-converter): 24-hour time to AM/PM and back
- [Date Format Calculator](https://www.timesanddates.com/date-format-calculator): Reformat dates between locale and ISO styles
- [Decimal Hours Converter](https://www.timesanddates.com/decimal-hours-converter): Hours:minutes to decimal hours for payroll
- [Roman Numeral Converter](https://www.timesanddates.com/roman-numeral-converter): Numbers to and from Roman numerals
- [Julian Date Converter](https://www.timesanddates.com/julian-date-converter): Julian day numbers and calendar dates
- [Chinese Lunar Calendar Converter](https://www.timesanddates.com/chinese-lunar-calendar-converter): Gregorian to Chinese lunar dates
- [Time Unit Conversion Tools](https://www.timesanddates.com/time-unit-conversion-tools): Seconds, minutes, days, weeks, and more
- [Time Units Calculator](https://www.timesanddates.com/time-units-calculator): Convert a duration across all time units at once
- [Unit Converter](https://www.timesanddates.com/unit-converter): General unit conversion beyond time
- [Excel Date Converter](https://www.timesanddates.com/excel-date-converter): Excel serial numbers to real dates
- [Discord Timestamp Generator](https://www.timesanddates.com/discord-timestamp): Localized timestamp markup for Discord messages
- [Distance Calculator](https://www.timesanddates.com/distance-calculator): Distance between coordinates and cities

## Astronomy

- [Sunrise & Sunset](https://www.timesanddates.com/sunrise-sunset): Sun times for any location and date
- [Moon Phase](https://www.timesanddates.com/moon-phase): Current moon phase and upcoming phases
- [Moonrise & Moonset Calculator](https://www.timesanddates.com/moonrise-moonset-calculator): Moon rise/set times by location
- [Astronomy Dashboard](https://www.timesanddates.com/astronomy): Combined sun, moon, and sky data
- [Eclipse Calculator](https://www.timesanddates.com/eclipse-calculator): Upcoming solar and lunar eclipses
- [Sun Position Calculator](https://www.timesanddates.com/sun-position-calculator): Solar altitude and azimuth at any moment
- [Day Length Calculator](https://www.timesanddates.com/day-length-calculator): Hours of daylight for any date and place
- [Golden Hour Calculator](https://www.timesanddates.com/golden-hour-calculator): Photography golden and blue hour times
- [Day & Night Map](https://www.timesanddates.com/day-night-map): Live world map of the day/night terminator
- [Moon Distance Calculator](https://www.timesanddates.com/moon-distance-calculator): Earth–moon distance over time
- [Seasonal Calculator](https://www.timesanddates.com/seasonal-calculator): Solstice and equinox dates
- [Mercury Retrograde](https://www.timesanddates.com/mercury-retrograde): Mercury retrograde periods
- [Earth Rotation Speed](https://www.timesanddates.com/earth-rotation-speed): Rotational velocity by latitude

## Timers & Productivity

- [Stopwatch](https://www.timesanddates.com/stopwatch): Online stopwatch with laps
- [Timer](https://www.timesanddates.com/timer): Countdown timer with alarm
- [Pomodoro Timer](https://www.timesanddates.com/pomodoro-timer): Focus/break interval timer
- [Alarm Clock](https://www.timesanddates.com/alarm-clock): Browser-based alarm clock
- [Work Hours Calculator](https://www.timesanddates.com/work-hours-calculator): Hours between clock-in and clock-out
- [Timesheet Calculator](https://www.timesanddates.com/timesheet-calculator): Weekly timesheet totals
- [Salary Calculator](https://www.timesanddates.com/salary-calculator): Hourly rate to salary equivalents
- [Shift Work Planner](https://www.timesanddates.com/shift-work-planner): Rotating shift schedule planning
- [Meeting Cost Calculator](https://www.timesanddates.com/meeting-cost-calculator): Cost of a meeting from attendee rates
- [Cron Generator](https://www.timesanddates.com/cron-generator): Build and explain cron expressions

## Calendars & Holidays

- [Holidays](https://www.timesanddates.com/holidays): Public holidays by country and year
- [Calendar Generator](https://www.timesanddates.com/calendar-generator): Printable calendars for any month or year

## Blog

- [Blog index](https://www.timesanddates.com/blog): Articles on time zones, astronomy, and date math
- [Permanent daylight saving time 2026](https://www.timesanddates.com/blog/permanent-daylight-saving-time-2026)
- [Total solar eclipse August 12, 2026](https://www.timesanddates.com/blog/total-solar-eclipse-august-12-2026)
- [Scheduling across time zones: best practices](https://www.timesanddates.com/blog/scheduling-across-time-zones-best-practices-2026)
- [IANA time zone database 2026 changes](https://www.timesanddates.com/blog/iana-time-zone-database-2026-changes)
- [Leap seconds, UTC, and Earth's rotation](https://www.timesanddates.com/blog/leap-seconds-2026-utc-earth-rotation)
- [Full moon calendar 2026: blue moon and supermoons](https://www.timesanddates.com/blog/full-moon-calendar-2026-blue-moon-supermoons)
- [Meteor shower calendar 2026](https://www.timesanddates.com/blog/meteor-shower-calendar-2026-perseids-geminids)
- [The Y2K38 problem and Unix timestamps](https://www.timesanddates.com/blog/y2k38-problem-unix-timestamp-2038)
- [Summer solstice 2026 explained](https://www.timesanddates.com/blog/summer-solstice-2026-longest-day-explained)
- [Leap years explained](https://www.timesanddates.com/blog/leap-years-explained-why-2028-has-february-29)
- [New Year's Eve around the world by time zone](https://www.timesanddates.com/blog/new-years-eve-around-the-world-time-zones)
- [World clock vs. time zone converter](https://www.timesanddates.com/blog/world-clock-vs-time-zone-converter-which-to-use-when)
- [Business days vs. date calculator](https://www.timesanddates.com/blog/business-days-vs-date-calculator-picking-the-right-tool)
- [Sunrise/sunset vs. moon phase tools compared](https://www.timesanddates.com/blog/sunrise-sunset-vs-moon-phase-calculator-astronomy-tools-compared)
- [How many working days in 2026](https://www.timesanddates.com/blog/how-many-working-days-in-2026)
- [When does daylight saving time end in 2026](https://www.timesanddates.com/blog/when-does-daylight-saving-time-end-in-2026)
- [How to convert a Unix timestamp to a readable date](https://www.timesanddates.com/blog/how-to-convert-unix-timestamp-to-readable-date)
- [How to convert military time to regular time](https://www.timesanddates.com/blog/how-to-convert-military-time-to-regular-time)
- [What is the Schengen 90/180 rule](https://www.timesanddates.com/blog/what-is-the-schengen-90-180-rule)
- [How to convert Excel serial numbers to real dates](https://www.timesanddates.com/blog/how-to-convert-excel-serial-numbers-to-real-dates)
- [What is a Julian date and how to convert it](https://www.timesanddates.com/blog/what-is-a-julian-date-and-how-to-convert-it)
- [How to write a cron expression](https://www.timesanddates.com/blog/how-to-write-a-cron-expression-for-my-schedule)
- [When is golden hour and how to calculate it](https://www.timesanddates.com/blog/when-is-golden-hour-and-how-to-calculate-it)
- [How many weeks in a year](https://www.timesanddates.com/blog/how-many-weeks-in-a-year-and-why-2026-has-53)

## Optional

- [About](https://www.timesanddates.com/about): About Times & Dates
- [Methodology](https://www.timesanddates.com/methodology): How the tools calculate results and where the data comes from
- [Contact](https://www.timesanddates.com/contact): Contact information
- [Privacy Policy](https://www.timesanddates.com/privacy)
- [Terms of Service](https://www.timesanddates.com/terms)
- [Cookie Policy](https://www.timesanddates.com/cookies)
- [Disclaimer](https://www.timesanddates.com/disclaimer)