Calendar

Just enter your wedding date to list the exact calendar date of every milestone, paper, silver, gold and more, plus the days left until your next anniversary.

Pick a date of death and a denomination (Catholic or Protestant) to instantly list every memorial date, from Memorial Masses to memorial services.

Just enter a reference year and instantly build a chart showing each age alongside the birth year (Gregorian and Japanese era) and Chinese zodiac sign. Lists ages 0 to 120 at a glance.

Just enter your date of birth and the date to check to see your physical, emotional and intellectual biorhythms as percentages. A 14-day trend chart and table make good days and critical days easy to spot at a glance.

Enter two people's birth dates and a target date to see how closely their physical, emotional, and intellectual biorhythm waves align. Get an overall compatibility score plus a breakdown by rhythm, all shown as percentages.

Enter a Japanese date and time to see the local standard time in major cities worldwide, including New York, London, Paris, and Sydney, all in one list.

Enter a date and time in Japan to see the local time in 15 major cities worldwide. Daylight saving time across Europe, the Americas, and Oceania is factored in automatically from the date.

Convert between Japan Standard Time and US time zones (Eastern, Central, Mountain, Pacific, and Hawaii). Toggle standard time and daylight saving to instantly see the local date, weekday, time, and offset.

Enter a UTC (Coordinated Universal Time) date and time to convert it to the local time of major world cities such as Tokyo, New York, and London. See the offset from UTC and any date shift at a glance.

Enter a start and end time to instantly get the elapsed duration. Handles overnight shifts that cross midnight and also shows the total in minutes, decimal hours, and seconds.

Add or subtract hours and minutes from a base time to find the resulting clock time. When the result crosses midnight, the day shift (next day, previous day, and so on) is shown automatically.

Add or subtract days, hours, and minutes from a start date and time to find the resulting date and time, with the day of the week.

Enter a start and end date-time to see the gap as days, hours and minutes. Total days, total hours and total minutes are shown at the same time.

Just enter your hourly wage to instantly see a quick-reference table of daily pay by hours worked and monthly pay by days worked.

Find your worked hours from clock-in, clock-out, and break time, then multiply by your hourly wage to estimate your pay. Handles overnight shifts that cross midnight.

Calculate overtime, late-night, and holiday premium pay from your base hourly wage and hours worked. Also converts a monthly salary into an hourly rate.

Sum multiple "hours:minutes" entries with plus and minus, and see the result as hours and minutes. Great for adding up work hours or shift time.

Add and subtract multiple "HH:MM:SS" values to get a combined total. Mix add and subtract rows freely and instantly see the result as hours, minutes and seconds, plus totals in seconds, minutes, and hours.

Instantly turn decimal hours, minutes, or seconds into an hours:minutes:seconds breakdown, like 2.5 hours into 2h 30m 0s.

Enter a duration in hours, minutes, and seconds and instantly get the total seconds, total minutes, and total hours (decimal). Perfect for lining up time units.

Just enter your date of birth (and birth time) to see how many seconds have passed since you were born. It also shows elapsed days, hours, minutes, and weeks at a glance, perfect for birthdays and anniversary fun facts.

Enter your departure time, travel duration, and the time zones of both cities to instantly get the local arrival time at your destination. Perfect for trips and flights across time zones.

Turn walking minutes into distance. Based on the 80 m/min (4.8 km/h) real-estate standard, instantly see the distance in meters, kilometers, and an estimated step count.

Enter a distance in meters or kilometers to instantly get the walking time in minutes. Uses the Japanese 80 m/min standard and even shows an estimated step count.

Count the working days between two dates, automatically excluding weekends and holidays. Choose which weekdays count as days off.

Find the date that falls a given number of business days before or after a start date, automatically skipping weekends and Japanese public holidays.

Displays a color-coded calendar for the year and month you choose, marking weekdays (business days), weekends, and Japanese public holidays, and automatically totals the business days and days off for that month.

Pick a start date and an end date to instantly find the number of days between them. Toggle whether both endpoints are counted, and see week, month, and year approximations at the same time.

Add or subtract days from a base date to find the date a given number of days before or after, complete with the day of the week. Includes a weeks breakdown, great for deadlines, anniversaries, and expiry dates.

Add or subtract weeks from any date to find the date X weeks later or earlier. Shows the weekday instantly.

Add or subtract years and months from any date and get the result with the weekday, Japanese era, and number of days elapsed. Handles month-end adjustment automatically.

Turn a start date into a table of dates and weekdays repeating every N days. Great for medication, recurring tasks, and maintenance cycles.

Instantly count how many days are left until your target date. Get the days, weeks, months, and weekday remaining to an exam, birthday, anniversary, or deadline. For past dates, see how many days have elapsed.

Instantly find the date a given number of days before (past) or after (future) any base date, complete with the day of the week and ISO week number.

Instantly find out what day of the week any date falls on. See the weekday in your language plus the day of the year, ISO week number, and Japanese era.

See what day of the week a fixed date falls on every year. Pick a month, day, start year, and number of years to view the weekday of that date across past and future years.

Enter a date of birth to find your exact age in years, plus days until your next birthday and the total number of days you have been alive.

Just enter the parent's and children's birth dates to instantly find the parent's age, each child's age, the parent-child age gap, and the parent's age at birth on any reference date. Add as many children as you like and compare the gaps between siblings in one table.

Enter any date to find which week of the year it falls in, using the ISO 8601 week number. The weekday, day of the year, and ISO year are shown at the same time.

Enter an ISO 8601 week number, year, and weekday to instantly find the matching calendar date. Also shows the Monday and Sunday of that week.

Pick a year to see a full January-to-December calendar at a glance, with Sundays, Saturdays and public holidays color-coded.

Pick a calendar year and instantly see all 11 U.S. federal holidays for that year, with their names, dates, and the day of the week each one falls on.

List the major public holidays of Taiwan (Republic of China) for any year. See New Year's Day, Spring Festival, Peace Memorial Day, Children's Day, Tomb-Sweeping Day, Dragon Boat Festival, Mid-Autumn Festival and National Day, split between fixed solar holidays and lunar-based ones.

Just enter a year to instantly find out whether it is a leap year or a common year. See the number of days in the year (366 or 365), the days in February (29 or 28), and the nearest leap years before and after.

Enter a start and end year to list every leap year in that range. See the total count, the nearest leap years just outside the range, and Japanese era years.

Find the number of years (the anniversary) from a founding, establishment or birth year to a reference year. Enter a Gregorian or Japanese-era year and instantly see the next 10-year milestone.

Just enter your date of birth and retirement age to instantly see how many days remain until you retire. Choose whether the retirement date falls on your birthday, the fiscal year-end, or the month-end, and also check the years remaining and your length of service from a start date.

Count how many of each weekday (Monday–Sunday) fall within a date range. Get the total days plus weekday and weekend totals at a glance.

Just enter a year to see the Gregorian date of that year's Lunar New Year (1st day of the lunar 1st month / Spring Festival), with the weekday. It also shows the year's Chinese zodiac sign and the Lunar New Year dates of the surrounding years.

Just pick a year and month to see each day's daily Nine Star (One White Water Star to Nine Purple Fire Star) as both a list and a monthly calendar. The annual and monthly principal stars are shown together, too.

Just enter a year (and optionally a month) to display that year's plate as a 3×3 Nine Star Ki chart. Check the center star (your birth star), the nine-star layout across the eight directions, and the month plate at a glance, and learn how to find your birth star.

Just choose a date and time to automatically work out the time nine-star (time chart) for the two-hour period (earthly branch) it falls in. The origin star is set from the day's earthly branch, and a nine-star is placed for each period according to the Yang or Yin cycle. The hour branch and the day nine-star are shown as well.

Just pick a year to list the Gregorian dates and solar ecliptic longitude of all 24 Japanese solar terms (sekki) — Start of Spring, spring equinox, summer solstice, autumn equinox, winter solstice and more. You can also check which term any given date falls in. Defaults to this year and today.

Show the full Monday-to-Sunday week containing any date, with weekdays, holidays, and the ISO week number.

Just enter a year to instantly find the date of Easter Sunday. See the dates for both the Western Church (Catholic and Protestant) and the Eastern Orthodox Church, plus related feasts like Ash Wednesday, Good Friday, and Pentecost, and Easter in nearby years.

Enter a Gregorian date to convert it into the Islamic (Hijri) calendar, with the month name and leap-year status shown.

Enter a Hijri (Islamic) year, month, and day to instantly get the matching Gregorian date and weekday. Pick the month by name, from Muharram through Dhu al-Hijjah.

Just enter a Hijri year to list the Gregorian date for the 1st of all 12 Islamic months. The start of Ramadan and the weekday of each month are shown instantly.

Enter your latitude, longitude, date and UTC offset to calculate the five daily prayers (Fajr, Dhuhr, Asr, Maghrib, Isha) plus sunrise, along with the Qibla direction toward Mecca.

Enter latitude, longitude, a start date, and standard time (UTC offset) to calculate a one-week (7-day) table of Islamic prayer times (Fajr, Shuruq, Dhuhr, Asr, Maghrib, Isha). This estimator also supports Fajr/Isha twilight angles, Asr calculation methods, and the Qibla bearing toward Mecca.

Enter any Gregorian date to convert it into the Iranian (Persian / Solar Hijri) calendar. Shows the Persian month name (Farvardin, Tir and more), leap-year status and day of the week, based on the spring-equinox new year (Nowruz).

Enter a date in the Iranian calendar (Persian / Solar Hijri) and convert it precisely to the Gregorian calendar via the Julian Day Number. Shows the Persian month name, day of the week, and leap-year status together.

Enter any Gregorian (Western) date and instantly convert it to the Jewish (Hebrew) calendar year, month, and day. Month names such as Tishrei and Nisan, the common-year vs. leap-year (13-month) status, and the weekday are all shown.

Enter a year, month and day in the Jewish (Hebrew) calendar and instantly get the matching Gregorian date and weekday. Handles leap years with Adar I and converts precisely through the Julian Day Number.

Enter a Maya Long Count (baktun.katun.tun.uinal.kin) and instantly get the matching Gregorian calendar date. The Tzolkin (260-day count), Haab (365-day count) and Julian Day Number are shown alongside.

Just enter a Gregorian date to convert it into the ancient Maya calendars. Shows the Long Count plus the 260-day Tzolkin, the 365-day Haab, and the Julian Day Number (JDN) used in the calculation.

Convert a number or a Gregorian date into Maya bars (5) and dots (1) and see it drawn out. Values are broken into base-20 places including the zero symbol, and a date also yields the Maya Long Count, Tzolkin, and Haab calendars.