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.

Discover what day of the week you were born, your zodiac signs, birthstone, and explore your 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.

Find your half birthday - the day exactly halfway between this birthday and the next. See the date, the weekday, a live countdown and the half-age you reach, and compare the everyday plus-six-months method with the true midpoint.

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.

Convert dates between the Gregorian and Hebrew calendars in both directions. See the Hebrew month, the date in gematria letters, the weekday, leap-year and Shabbat flags, the holiday on that day and countdowns to the next festivals.

Convert dates between the Gregorian and Hijri calendars in both directions. See the Arabic month name, Arabic-Indic numerals, the weekday, sacred-month and leap-year flags, and countdowns to Ramadan, Eid al-Fitr and Eid al-Adha.

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 dates between the Gregorian calendar and the Chinese lunisolar calendar, both ways from 1900 to 2100. See the zodiac animal, Heavenly Stem and Earthly Branch pillars, Five Element nayin, leap months and traditional 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.

Estimate a projected prison release date by applying good-behaviour, earned-time and program credits to an original sentence. Enter the start date and length, choose credit rates, and see the new date, days saved and percentage reduced.

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.

A live world clock showing the current time in cities across every time zone, each with a real day-and-night indicator from the sun's position. Add the cities you care about, compare time differences and plan a meeting everyone can make.

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

Calculate the exact years, months, days, weeks, hours, and minutes between any two dates. Includes age calculation, business days count, milestone tracking, and visual timeline.

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

Calculate the exact time duration between two times or dates. Get results in multiple formats including hours, minutes, seconds, work hours, and visual timeline representation.

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.

Calculate weekly work hours from daily clock-in and clock-out times with automatic overtime detection, break deductions, and a printable timesheet summary.

Set customizable countdown timers for any duration with audio alerts, animated circular progress, preset quick-start options, and fullscreen mode.

Add and subtract hours, minutes, and seconds with a multi-row timesheet calculator. Perfect for payroll, project tracking, invoicing, and time management with decimal hours conversion.

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

Convert times between any world time zones with DST-aware calculations, multi-city comparison, visual time bars, and meeting planner to find overlapping business hours.

Instantly convert between 12-hour (AM/PM) and 24-hour (military) time formats with an interactive clock visualization and complete 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 longest day of the year (summer solstice) with exact date, time, daylight hours, and astronomical details for your hemisphere.

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.

Find the exact date and UTC time of the summer solstice for any year from 2000 to 2099, with countdown timer, daylight hours estimate, and detailed astronomical context for both hemispheres.

Find the exact date and time of the vernal (spring) equinox, autumnal equinox, summer solstice, and winter solstice for any year from 1 to 9999. Includes all four seasonal events with UTC times.

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

Check if any year is a leap year with visual rule testing, find all leap years in a range, discover the next or previous leap year, and explore leap year patterns with an interactive calendar grid.

Generate a complete list of leap years between any two years from 1600 to 4000. Visual timeline with patterns, statistics, and interactive year checker.

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.

Find out when is the last and next leap year, check if any year is a leap year, view leap year lists, and explore the leap year rules with interactive visualizations.