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.
Business Days Calculator
Calculate business days between two dates (excluding weekends).
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.
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.
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.
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.
Hours Between Dates Calculator
Calculate hours between two dates.
Subscription Expiry Calculator
Calculate subscription expiry dates.
About Date & Time
Our Date & Time calculators are designed to help you solve complex problems and get accurate results quickly.
Top Date & Time Calculators
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.