Date Tools

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.