Time and Date
Date Tools
Add Business Days to 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. New
Birth Day of the Week Calculator - Discover what day of the week you were born, your zodiac signs, birthstone, and explore your upcoming birthdays. Featured
Business Days Calculator - Calculate business days between two dates by excluding weekends and selectable public holidays from 12+ countries, with custom workweek and custom-holiday support. New
Calendar - Create beautiful printable monthly and yearly calendars for any year from 1 to 3999. Features today highlighting, leap year indicators, and print-ready designs.
📅 Date Calculator - Add or subtract days, weeks, months, and years to/from a date with step-by-step calculations, interactive visualizations, and comprehensive date insights. Featured
📅 Date Difference Calculator - 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. New
Date Pattern Generator - Generate a list of recurring dates by pattern: every N days, every N weeks on chosen weekdays, monthly on a day-of-month, the Nth weekday of each month, or last weekday. Skip weekends and holidays, bound by end date or count, and export to CSV, Markdown, or ICS calendar feed. New
Day of the Week Calculator - 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.
Day of the Year Calculator - What Day of the Year Is It Today? - Find what day of the year it is with our interactive calculator. See year progress, week number, quarter, days remaining, and a visual calendar view for any date. Featured
Day of Year Calendar - Find the day number (1-365/366) for any date. Interactive calendar with year progress tracker, week numbers, quarter breakdown, and instant lookup for 2026. Featured
Days Between Two Dates - Calculate the exact number of days, weeks, months, and years between two dates with visual timeline, business days calculation, and detailed time breakdown.
Days in Month - Calculate the number of days in any month for any year with visual calendar display, leap year detection, and historical date information.
Halfway Date Calculator - Find the exact midpoint date between any two dates. Perfect for planning anniversaries, project milestones, pregnancy halfway points, or relationship anniversaries — with quarter-point milestones, time-progress visualization, and a printable timeline. New
Hebrew Calendar Converter - Convert any date between the Gregorian calendar and the Hebrew (Jewish) calendar, fully bi-directional. See the Hebrew month name, the date written in traditional Hebrew gematria letters, the weekday in Hebrew, the leap-year (Adar I/Adar II) and Shabbat flags, the year-length type, the Jewish holiday landing on that day, and a live countdown to the next Rosh Hashanah, Hanukkah, Passover and Yom Kippur. New
Hijri Calendar Converter - Convert any date between the Gregorian calendar and the Hijri (Islamic) calendar, fully bi-directional. See the Arabic month name, the date in Arabic-Indic numerals, the weekday in Arabic, the sacred-month and leap-year flags, the Islamic holiday landing on that day, and a live countdown to the next Hijri New Year, Ramadan, Eid al-Fitr and Eid al-Adha. New
How Long Ago Calculator - 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. New
How Long Until Calculator - A live, second-by-second countdown to any future date or date-and-time. See years, months, days, hours, minutes, and seconds remaining — with animated ticking, smart event presets (New Year, Christmas, next Friday 5 PM, summer solstice), a copyable summary, and a shareable link. New
Is it April Fool's Day? - 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.
Is it Christmas? - 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.
Lunar Calendar Converter - Convert any date between the Gregorian (solar) calendar and the Chinese lunisolar (lunar) calendar. Instantly see the zodiac animal, Heavenly Stem and Earthly Branch (Gan-Zhi) pillars, Five Element nayin, leap-month detection, and traditional Chinese festivals — fully bi-directional from 1900 to 2100. New
Sentence Reduction Calculator - Estimate a projected prison release date by applying good-behavior credits, earned-time credits, and program credits to an original sentence. Enter the sentence start date and length, choose your credit rates, and see your new release date, the total days saved, the percentage reduced, and an animated timeline comparing the original and reduced sentence with a step-by-step breakdown. New
Statute of Limitations Calculator - Find the deadline to file a lawsuit with this Statute of Limitations Calculator. Select your case type (personal injury, written or oral contract, debt, property damage, fraud, medical malpractice, defamation, or wrongful death) and your U.S. state, then enter the incident or discovery date. The tool looks up the limitations period for that combination, counts forward to the exact filing deadline, and shows how much time you have left on an animated timeline with a year/month/day countdown and an urgency status. Covers all 50 states and Washington, D.C. For general information only — not legal advice. New
Leap Year Calculators
Is it Leap Year? - 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.
Leap Years List - Generate a complete list of leap years between any two years from 1600 to 4000. Visual timeline with patterns, statistics, and interactive year checker. Featured
Next Leap Year Calculator - 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.
When is Leap Year? - 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.
Season Calculators
Autumnal Equinox Day - 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.
First Day of Autumn - 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.
First Day of Spring - 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.
First Day of Summer - 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.
First Day of Winter - 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.
Longest Day of the Year - Find the longest day of the year (summer solstice) with exact date, time, daylight hours, and astronomical details for your hemisphere.
Shortest Day of the Year - 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.
Summer Solstice Day - 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.
Vernal Equinox Day - 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.
Winter Solstice Day - Find the winter solstice (shortest day of the year) with exact date, time, daylight hours, and astronomical details for your hemisphere.
Time Calculators
⏱️ Countdown Timer - Set customizable countdown timers for any duration with audio alerts, animated circular progress, preset quick-start options, and fullscreen mode. New
Decimal to Time Converter - Convert decimal hours to hours, minutes and seconds with step-by-step breakdown, multiple output formats, and visual time representation.
⏱️ Hours Calculator - 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. New
🕐 Military Time Converter - Instantly convert between 12-hour (AM/PM) and 24-hour (military) time formats with an interactive clock visualization and complete reference chart. New
⏰ Online Alarm Clock - Set alarms with customizable sounds directly in the browser — no app install required. Supports multiple alarms, snooze, and a beautiful live clock display. New
⏱️ Online Stopwatch - Professional digital stopwatch with lap timing, split times, visual lap comparison, keyboard shortcuts, and exportable results for sports, cooking, and productivity. New
⏰ Time Card Calculator - Calculate weekly work hours from daily clock-in and clock-out times with automatic overtime detection, break deductions, and a printable timesheet summary. New
Time Duration Calculator - 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. Featured
Time to Decimal Converter - 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.
🌐 Time Zone Converter - 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. New
Unix Time Converter - 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.
Work Hours Calculator - 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.
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