Time and Date

Add or subtract business days from any starting date, automatically skipping weekends and holidays from 13 country calendars. Multi-milestone timeline, skip-day trace, and printable calendar view.

Find out exactly how long you have been together, married or friends. Counts total days, weeks, months and years, counts down to your next anniversary, flags milestones like the 1,000th day, and names the traditional gift.

Enter a birth date. Get the weekday you were born, zodiac signs, birthstone, and upcoming birthdays.

Calculate business days between two dates by excluding weekends and selectable public holidays from 12+ countries, with custom workweek and custom-holiday support.

Create beautiful printable monthly and yearly calendars for any year from 1 to 3999. Features today highlighting, leap year indicators, and print-ready designs.

Generate recurring dates by pattern: every N days, every N weeks on chosen weekdays, monthly on a day of the month, the Nth weekday, or the last weekday. Skip weekends and holidays, and export to CSV, Markdown or an ICS calendar.

Convert any birthday or date into Roman numerals for tattoos, keepsakes, rings and anniversary gifts. Choose the date order and separator style, copy a ready-made tattoo format, and see how each numeral is built step by step.

Find the day of the week for any date. Features visual calendar display, historical context, day characteristics, and detailed date information with zodiac signs and seasons.

Check today’s day number or choose another date. See the day of the year, ISO week number and days remaining, with leap years included.

Find the day number for any date in a full-year calendar. Check leap years, week numbers and the progress of the current year.

Calculate the exact number of days, weeks, months, and years between two dates with visual timeline, business days calculation, and detailed time breakdown.

Calculate the number of days in any month for any year with visual calendar display, leap year detection, and historical date information.

Enter your birth date to find your exact half birthday, the day of the week, your half-age, and a live countdown.

Find the exact halfway date between any two dates in one click. Includes quarter-point milestones, time-progress visualization, and a printable timeline — perfect for anniversaries, pregnancies, and project planning.

Enter a Gregorian or Hebrew date to convert it and see the Hebrew month, weekday, any holiday that day, and the next festival countdown.

Enter a Gregorian or Hijri date to convert between calendars, view Arabic month details, and check countdowns to Ramadan and Eid.

Calculate exactly how long ago any past date or moment was — in years, months, weeks, days, hours, minutes, and seconds. With a live ticking counter, multi-unit breakdown, life-percentage view, and a printable timeline of milestones.

A live, second-by-second countdown to any future date or date and time. See the years, months, days, hours, minutes and seconds remaining, with event presets like New Year and Christmas, a copyable summary and a shareable link.

Check if today is April Fool's Day. See a live countdown to the next April 1st, explore the history and global traditions of April Fools' Day, and discover famous pranks from around the world.

Check if today is Christmas Day (December 25th) with a live countdown timer, days remaining, fun facts, and Christmas celebration details from around the world.

Convert any date and time between ISO 8601, RFC 2822, RFC 3339, HTTP/GMT, Unix timestamps, ISO week and ordinal dates and human-readable styles. A colour-coded anatomy diagram breaks the ISO string into each of its parts.

Convert a calendar date and time to Julian Date (JD), or convert JD back to a date. View JDN and MJD alongside the day-of-year number.

Convert a Gregorian or Chinese lunisolar date from 1900 to 2100. Get the matching date, zodiac animal, stem and branch, leap month, and festivals.

Count down to the day you retire. A live ticking timer shows the days, hours, minutes and seconds left, plus the workdays, paychecks, Mondays and weekends still ahead and how far along your working life already is.

Enter a sentence start date, length, and credit percentages or days to calculate your projected release date, total days saved, and sentence reduction.

Count exactly how long you have been sober or free from a habit. See total days, weeks, months and years clean, a live count-up timer, your next milestone with a countdown, and the money and drinks or cigarettes you have saved.

Find the deadline to file a lawsuit. Pick your case type and US state, enter the incident or discovery date, and the tool counts forward to the exact filing deadline with a countdown and urgency status. General information only.

Find the current week number or the one for any date. Shows the ISO 8601 week (Monday start) beside the North American week (Sunday start), the exact date range, day of year and week of month. Also works in reverse.

Add cities to see the current time, a day-or-night marker from the sun's position, and the time difference between places.

Add or subtract days, weeks, months, and years to/from a date with step-by-step calculations, interactive visualizations, and comprehensive date insights.

Enter a start date and an end date to get years, months, days, weeks, hours and minutes between them, including business days and age.

Convert decimal hours to hours, minutes and seconds with step-by-step breakdown, multiple output formats, and visual time representation.

Enter a start and end time, or two dates, to get the duration in hours, minutes, seconds, and work hours.

Convert time in hours, minutes, and seconds to decimal format for payroll, billing, and timesheet calculations. Features visual clock dial, step-by-step breakdown, and copy functionality.

Convert Unix timestamp to human-readable date/time or convert date/time to Unix timestamp. Features live clock, multiple timezone support, and various date formats.

Calculate your weekly work hours with visual analytics, overtime tracking, break management, and printable timesheet. Track daily totals, weekly summary, monthly estimates, and hourly pay calculations.

Set alarms with customizable sounds directly in the browser — no app install required. Supports multiple alarms, snooze, and a beautiful live clock display.

Enter each day's clock-in and clock-out times, with breaks, to total weekly hours and overtime on a timesheet.

Set hours, minutes, and seconds, from one second up to 99 hours. Run it with an audio alert and a fullscreen view.

Add work or task durations and subtract breaks across up to 50 labeled rows. Get the total in hours, minutes, and seconds, plus decimal hours.

Professional digital stopwatch with lap timing, split times, visual lap comparison, keyboard shortcuts, and exportable results for sports, cooking, and productivity.

Pick time zones and a clock time to convert it with daylight saving, compare several cities, and find overlapping business hours.

Type a time such as 2:30 PM or 14:30. Get both the 12-hour and 24-hour forms, a clock view, and the reference chart.

Find the exact date and time of the autumnal equinox for any year from 2000 to 2038, with countdown, season duration, multi-year comparison, and astronomical insights.

Find the exact date and time of the first day of autumn (fall equinox) for any year. Includes countdown timer, hemisphere selection, and comprehensive seasonal information.

Find the exact date and time of the first day of spring (vernal equinox) for any year from 2000 to 2038, with live countdown, season duration, all seasonal events, and multi-year comparison.

Find the exact date and time of the first day of summer (summer solstice) for any year from 2000 to 2038, with live countdown, daylight hours, all seasonal events, season duration, and multi-year comparison.

Find the exact date and time of the first day of winter (winter solstice) for any year from 2000 to 2038, with live countdown, season duration, all seasonal events, and multi-year comparison.

Find the summer solstice for your hemisphere: the date and time of the longest day and how many daylight hours it has.

Find the shortest day of the year (winter solstice) for any year. Discover when the winter solstice occurs in your hemisphere with exact date, time, countdown timer, and educational astronomical information.

Enter a year from 2000 to 2099 to get the summer solstice date and UTC time, a countdown, and daylight context for both hemispheres.

Enter any year from 1 to 9999 to find the exact UTC dates and times for the vernal equinox, autumnal equinox, and both solstices.

Find the winter solstice (shortest day of the year) with exact date, time, daylight hours, and astronomical details for your hemisphere.

Enter a year to test the leap-year rules, or a start and end up to 2000 years apart to list every leap year in that span.

Enter a start and end year from 1600 to 4000. See every leap year in that span, or check one year, on a timeline.

Find the next leap year from any given year with visual timeline, leap year checker, and educational content about the Gregorian calendar 400-year cycle.

Enter a year to see if it is a leap year, when the previous and next leap years fall, and how the leap-year rule works.