Date & Time
Calculate time differences and convert between different calendars.
Fixed Christian Feasts Calculator
Free Christian feast calculator. Find dates for fixed holidays like Christmas, Epiphany, and Annunciation for any year.
Movable Christian Holy Days Calculator
Free Easter-based holy days calculator. Calculate movable Christian dates like Ash Wednesday, Pentecost, and Ascension.
Coptic Holy Days Calculator
Free Coptic holy days calculator. Find dates for fixed and movable Coptic Orthodox feasts and religious occasions.
Hebrew Holidays Calendar
Free Jewish holidays calendar. Find dates for Hebrew feasts and fasts including Rosh Hashanah, Yom Kippur, and Passover.
Holy Week Dates Calculator
Free Holy Week calculator. Find exact dates for Palm Sunday, Maundy Thursday, Good Friday, and Easter for any year.
Samaritan Calendar Converter
Free Samaritan calendar converter. Convert dates between Gregorian and Samaritan calendar systems online easily.
Samaritan Festivals Calculator
Free Samaritan festivals calculator. Find dates for religious holidays including Passover, Shavuot, and Sukkot.
Yazidi New Year Calculator
Free Yazidi New Year calculator. Find the date of Charshema Sor (Red Wednesday) and upcoming celebrations online.
Gregorian to Hijri Date Converter
Convert dates between Gregorian and Hijri calendars.
Date Difference Calculator
Calculate difference between two dates.
Age Calculator
Calculate your exact age.
Hijri to Gregorian Converter
Convert between Hijri and Gregorian dates.
Age Calculator - Calculate Your Age in Years Months Days
Calculate your exact age in years, months, and days online. Free age calculator that shows your age breakdown with precision. Find out how old you are today.
Countdown Calculator
Calculate time remaining until a future date.
Time Zone Converter
Convert time between different time zones.
Business Days Calculator
Calculate business days between two dates (excluding weekends).
Countdown Calculator
Calculate time remaining to a target date.
Work Days Calculator
Calculate work days between two dates (excluding weekends).
Pregnancy Week Calculator
Calculate current pregnancy week and stage.
Time Zone Converter
Convert time between different time zones.
Detailed Age Calculator
Calculate your age in detail.
Advanced Sleep Cycle Calculator
Calculate optimal wake/sleep time.
Date Difference Calculator - Calculate Days Between Dates
Calculate the difference between two dates in days, weeks, months, and years. Free date difference calculator for measuring time spans and durations.
Day of Week Calculator - Find What Day of Week Any Date Was
Find out what day of the week any date falls on. Free day of week calculator for past, present, and future dates. Perfect for planning and historical research.
Lunar Age Calculator - Calculate Your Age in Hijri Calendar
Calculate your exact age in the Islamic Hijri calendar. Free lunar age calculator that shows your age in lunar years, months, and days.
Add Days to Date Calculator
Add or subtract days from a specific date.
Time Duration Calculator
Calculate duration between two times on the same day.
Ramadan Countdown
Calculate days remaining until next Ramadan.
Days Until Christmas Countdown
Calculate days remaining until next Christmas.
Minutes to Hours Converter
Convert minutes to hours and minutes.
Retirement Date Calculator
Calculate your retirement date based on age and retirement age.
Date Adder
Add days, months, or years to a date.
Weekday Finder
Find the day of week for any date.
Time Duration Calculator
Calculate duration between two times.
Retirement Countdown
Calculate time remaining until retirement.
Zodiac Sign Calculator
Calculate zodiac sign from birth date.
Period Cycle Calculator
Track menstrual cycle and predict next dates.
Countdown Calculator
Calculate time remaining until a date.
Work Hours Calculator
Calculate total work hours.
Advanced Date Difference
Calculate difference between two dates.
Islamic Hijri Date Converter
Convert between Gregorian and Hijri dates.
Time Zone Converter
Convert time between different time zones online.
Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates.
Hours to Days Converter
Convert hours to days, weeks, and months.
Week Number Calculator
Calculate the week number of the year for any date.
Seconds to Hours Converter
Convert seconds to hours, minutes, and seconds.
Pay Period Calculator
Calculate upcoming pay dates.
Unix Epoch Converter
Convert between Unix timestamp and date.
Stopwatch Lap Calculator
Calculate lap times and splits.
Meeting Duration Calculator
Calculate meeting duration from agenda items.
Quarter Calculator
Calculate fiscal quarter and dates.
Leap Year Checker
Check if a year is a leap year.
Hours Between Dates Calculator
Calculate hours between two dates.
Subscription Expiry Calculator
Calculate subscription expiry dates.
Epoch Time Converter
Convert between Unix timestamp and date.
Pay Period Calculator
Calculate next pay period.
Decimal Time Converter
Convert between decimal and standard time.
World Clock Calculator
Compare time between different cities.
Project Timeline Calculator
Calculate your project timeline.
Duration Converter
Convert duration between different units.
Date Format Converter
Convert dates between different formats.
Coptic Calendar Information - Learn Coptic Calendar Months
Learn the 13 Coptic months and how they map to Gregorian dates. Complete guide to the Coptic Orthodox calendar system.
Coptic to Gregorian Date Converter - Free Calendar Tool
Convert Coptic calendar dates to Gregorian calendar dates. Free online tool for date conversion between Coptic and Gregorian systems.
Hebrew Calendar Information - Learn Hebrew Calendar Months
Learn the 13 Hebrew months and how the lunisolar calendar works. Complete guide to the Jewish calendar system.
Hebrew to Gregorian Date Converter
Convert dates between Hebrew and Gregorian calendars
Holy Week Information - Orthodox Easter Traditions Guide
Learn about Holy Week observances and traditions in Eastern Orthodox Christianity. Complete guide to Orthodox Easter week.
Holy Week Traditions - Easter Week Customs and Observances
Discover the various traditions and customs of Holy Week across different Christian denominations. Learn Easter week observances.
Fiscal Year Calculator
Calculate fiscal year and its divisions.
School Year Planner Calculator
Calculate weeks and days remaining in semester.
Age Difference Calculator
Calculate age difference between two people.
Billing Cycle Calculator
Calculate upcoming billing dates.
Season Finder Calculator
Calculate current season and upcoming seasons.
Moonrise Moonset Calculator
Calculate moonrise and moonset times.
Date Range Overlap Calculator
Calculate overlap between two date ranges.
Service Interval Calculator
Calculate upcoming service/maintenance dates.
Work Shift Duration Calculator
Calculate work hours with break times.
Solar Noon Calculator
Calculate solar noon time for your location.
Sprint Duration Calculator
Calculate Agile sprint dates and working days.
Leap Year Checker
Check if a year is a leap year.
Bar Bat Mitzvah Calculator - Calculate Jewish Coming of Age Date
Calculate the Bar or Bat Mitzvah date for Jewish coming of age ceremony. Free calculator to determine the exact date of this important Jewish milestone.
Yazidi Calendar Converter
Free online Yazidi calendar converter. Convert dates between Gregorian and Yazidi calendar systems instantly.
About Date & Time
Our Date & Time calculators are designed to help you solve complex problems and get accurate results quickly.
Top Date & Time Calculators
حاسبة الأعياد المسيحية الثابتة
حساب وعرض تواريخ الأعياد المسيحية الثابتة (مثل عيد الميلاد، البشارة، الغطاس) لسنة معينة.
حاسبة المناسبات المسيحية المتحركة
حساب تواريخ المناسبات المسيحية المعتمدة على تاريخ عيد الفصح (مثل أربعاء الرماد، العنصرة) للتقاليد الغربية والشرقية.
حاسبة الأعياد والمناسبات القبطية
حساب وعرض تواريخ الأعياد والمناسبات الدينية الثابتة والمتغيرة في التقويم القبطي لسنة قبطية معينة (بالتواريخ الميلادية التقريبية).
تقويم الأعياد والمناسبات العبرية
عرض قائمة الأعياد والمناسبات والصيام في التقويم العبري لسنة عبرية معينة مع وصف موجز وتواريخ تقريبية.
حاسبة تواريخ الأسبوع المقدس
حساب وعرض التواريخ الدقيقة لأيام الأسبوع المقدس (من أحد الشعانين إلى اثنين الفصح) لسنة معينة وللتقاليد الغربية والشرقية.