Calendar Generators
Generate printable calendars, convert to lunar/historical calendars, and track solar events.
Printable Calendar Generator
Generate and download a clean, custom printable calendar for any year or month.
Custom Calendar Creator
Build a calendar with custom holidays, personal events, and color coding.
Week Number Calculator
Find the ISO-8601 week number for any given date.
Day of the Year Calculator
Find out what number day of the year (1-365) a specific date falls on.
Leap Year Calculator
Check if a specific historical or future year is a leap year.
Days in Month Calculator
Find the exact number of days in any specific month and year combination.
Days in Year Calculator
Find the exact total days in a historical or future year.
Quarter Calculator (Q1, Q2, Q3, Q4)
Determine which financial or calendar quarter a specific date belongs to.
Fiscal Year Calculator
Map calendar dates to specific company fiscal years based on starting months.
Shift Calendar Generator
Generate a rotating work shift schedule (e.g., 4 on, 4 off).
School Calendar Generator
Generate an academic year calendar marking semesters and breaks.
Moon Phase Calendar
Calculate the lunar phase (Full, New, Crescent) for any day of the year.
Hijri (Islamic) Calendar Converter
Convert dates between the Gregorian calendar and the Islamic Hijri calendar.
Hebrew Calendar Converter
Convert dates to and from the traditional Hebrew lunisolar calendar.
Hindu Calendar Converter
Panchang conversions mapped to the Gregorian system.
Julian to Gregorian Converter
Convert historical dates from the Julian calendar to the modern Gregorian system.
Persian (Jalali) Calendar Converter
Convert dates accurately to and from the Solar Hijri calendar.
Ethiopic Calendar Converter
Convert to the unique 13-month Ethiopian calendar system.
Roman Numeral Date Converter
Convert modern dates (MM/DD/YYYY) into classic Roman numerals.
Day of the Week Calculator
Find out what day of the week a specific historical date was.
Friday the 13th Calculator
Find all the upcoming occurrences of Friday the 13th in a given year.
Equinox & Solstice Calculator
Calculate the exact UTC dates for the Spring/Fall equinoxes and Summer/Winter solstices.
Sunrise & Sunset Calculator
Find exact solar times based on your city or latitude/longitude.
Golden Hour Calculator
Calculate the exact windows for golden hour photography based on location.
Blue Hour Calculator
Find the twilight windows directly before sunrise and after sunset.
Twilight Calculator (Civil, Nautical, Astronomical)
Calculate all three stages of twilight for a specific location.
Solar Noon Calculator
Find the exact minute the sun reaches its highest point in the sky.
Day Length Calculator
Calculate the total hours and minutes of daylight for any specific date and location.
Star Sign Calculator
Find your exact astrological sign considering cusp dates.
Mayan Calendar Converter
Convert modern dates to the Mayan Long Count calendar system.