Calendar ToolsetDate Planning
Date calculators, countdowns, and business day tools
Date Calculator - Free Online Tool
Calculate date with our free tool. Get precise results instantly.
Date Difference Calculator - Free Online Tool
Calculate date difference with our free tool. Get precise results instantly.
Age Calculator - Free Online Tool
Calculate your exact age in years, months, days, hours, minutes, and seconds. Shows zodiac sign and generation.
Birthstone by Month Finder
Find the modern and traditional birthstones for any month or birth date, with each gem's color, Mohs hardness and everyday-wear durability.
Business Days Calculator - Free Online Tool
Free online business days calculator for date and time calculations. Perfect for scheduling, planning, and time zone management.
Chinese Zodiac Calculator: Animal, Element and Yin-Yang
Find your Chinese zodiac animal, element and yin-yang from your exact birth date, using the Lunar New Year (or Lichun) boundary so January and February birthdays are correct.
Countdown Timer Tool - Free Online
Calculate countdown timer with our free tool. Get precise results instantly.
Daylight Saving Time Dates
Find when the clocks change for daylight saving time in the U.S., Europe, Australia, New Zealand or any time zone, for any year from 2008 to 2099, with a countdown to the next change.
Easter Date Calculator
Find the date of Western and Orthodox Easter for any year from 1583 to 4099, with Ash Wednesday, Good Friday, Pentecost and a 10-year table.
Islamic Prayer Times Calculator
Calculate Fajr, Sunrise, Dhuhr, Asr, Maghrib and Isha for any city and date, and compare the Muslim World League, ISNA, Egyptian, Umm al-Qura, Karachi and Tehran methods side by side.
Online Stopwatch with Laps & Split Export
A free online stopwatch with lap and split times, fastest and slowest lap highlights, keyboard shortcuts and CSV export of every lap.
Time Calculator
Add and subtract hours, minutes and seconds, find the time between two clock times including overnight, or work out the clock time after a set duration.
Time Card Calculator
Add up a weekly timesheet from clock-in and clock-out times, with unpaid breaks, overnight shifts, decimal and H:MM totals, federal or California daily overtime, double time, gross pay, print and CSV export.
US Federal Holidays Calendar
See every U.S. federal holiday for any year from 1971 to 2100, with the Friday or Monday it is observed when it lands on a weekend, Federal Reserve differences, and a calendar download.
When Is Chinese New Year? Lunar New Year Date for Any Year
Find the date of Chinese (Lunar) New Year for any year from 1900 to 2100, with the weekday, zodiac animal and element, a countdown and a 12-year table.
Zmanim & Shabbat Candle Lighting Times
Calculate daily zmanim (dawn, latest Shema, chatzot, plag hamincha, nightfall) with GRA and Magen Avraham opinions, plus Shabbat candle lighting and havdalah times for any city.