Time & Date

Free days between dates calculator. Find exact day count between two dates including or excluding end date. Perfect for planning and scheduling.

Free weeks between dates calculator. Find how many weeks separate two dates with remaining days. Ideal for planning and scheduling.

Free months between dates calculator. Find exact months and days between any two dates. Perfect for age calculations and lease tracking.

Free years between dates calculator. Find exact years, months, and days between dates. Perfect for age and anniversary calculations.

Free business days calculator. Count working days between dates excluding weekends and holidays. Essential for project planning.

Free weekends between dates calculator. Count Saturday and Sunday days in any date range. Perfect for vacation and time-off planning.

Free epoch to datetime converter. Convert Unix timestamps to human-readable dates and times. Essential for developers and data analysts.

Free datetime to epoch converter. Convert any date and time to Unix timestamp format. Perfect for developers and database work.

Free Unix timestamp converter. Bidirectional conversion between epoch time and dates. Essential developer tool for timestamp work.

Free ISO 8601 date formatter. Convert dates to international standard format. Essential for APIs and international date handling.

Free timezone converter. Convert times between any world timezones instantly. Perfect for international coordination and scheduling.

Free day of week finder. Discover what day any date falls on—past, present, or future. Perfect for planning and historical research.

Free week number calculator. Find ISO week numbers for any date. Essential for project planning and business scheduling.

Free Julian date converter. Convert between Julian day numbers and Gregorian dates. Essential for astronomy and historical research.

Free RFC 3339 date converter. Convert dates to internet standard timestamp format. Perfect for API development and data exchange.

Free Christmas countdown timer. See days, hours, minutes until Christmas. Build excitement with a live updating holiday countdown.

Free New Year countdown timer. Watch days, hours, minutes until midnight on New Year's Eve. Perfect for party planning.

Free birthday countdown timer. Count days until your next birthday. Fun personal timer for tracking your special day.

Free custom countdown timer. Create countdowns to weddings, vacations, graduations, or any date. Shareable event countdown tool.

Free time until event calculator. Find days, hours, and minutes until any date. Perfect for countdowns to weddings, vacations, or deadlines.

Free Pomodoro timer for productivity. 25-minute focus sessions with short and long breaks. Boost concentration and get more done.

Free study session timer. Track focused study periods with customizable breaks. Perfect for students and exam preparation.

Free workout interval timer. Create custom exercise timers for HIIT, Tabata, and circuit training. Audio alerts keep you on track.

Free age calculator. Find your exact age in years, months, and days from your birthdate. Also shows age in weeks, hours, and minutes.

Free dog age calculator. Convert your dog's age to human years using modern science. Understand your pet's life stage and health needs.

Free cat age calculator. Convert your cat's age to human years accurately. Understand your feline's life stage and care needs.

Free baby age calculator in weeks. Track your baby's age week by week from birth. Perfect for development milestones and checkups.

Free duration to seconds converter. Convert hours, minutes, and seconds to total seconds. Essential for programming and calculations.

Free duration to minutes converter. Convert hours and seconds to total minutes. Perfect for scheduling and time management.

Free duration to hours converter. Convert days, minutes, and seconds to total hours. Ideal for payroll and time tracking.

Free duration to days converter. Convert weeks, hours, and minutes to total days. Perfect for project planning and timelines.

Free moon phase calendar. See full moon, new moon, and lunar phases for any date. Perfect for astronomy, gardening, and photography.

Free sunrise sunset calculator. Find sunrise, sunset, and daylight hours for any location and date. Perfect for photography and planning.

Free menstrual cycle calculator. Predict period dates based on your cycle length. Track and plan with estimated future periods.

Free ovulation calculator. Estimate your fertile window and ovulation date based on cycle data. Helpful for family planning.

Free pregnancy due date calculator. Estimate your baby's due date based on last period or conception date. Track pregnancy milestones.

Free pregnancy trimester calculator. Find which trimester you're in and when each begins. Track your pregnancy journey by trimester.

Free recurring event scheduler. Generate dates for daily, weekly, monthly, or yearly recurring events. Perfect for planning regular activities.

Free shift schedule generator. Create rotating work schedules for teams. Support for 2-shift, 3-shift, and custom rotation patterns.

Free random date generator. Generate random dates within any range. Perfect for testing, games, and random sampling.

Free random time generator. Generate random times within any hour range. Perfect for testing, scheduling, and games.

Free random year generator. Generate random years within any range. Perfect for games, research scenarios, and creative projects.

Free back-to-school countdown. Count days until school starts. Perfect for students, parents, and teachers preparing for the new school year.

Free summer countdown timer. Count days until summer solstice or summer break. Build anticipation for warm weather and vacation.

Free winter countdown timer. Count days until winter solstice. Track when the cold season begins and plan accordingly.

Free tax day countdown. Count days until the tax filing deadline. Stay on track with your tax preparation schedule.

Free fiscal week calculator. Find fiscal year week numbers based on your company's fiscal calendar. Essential for business reporting.

Free quarter calculator. Find which calendar or fiscal quarter any date belongs to. Essential for business and financial planning.

Free day of year finder. Find what ordinal day number (1-365 or 366) any date is within its year. Perfect for planning and calculations.

Free week of year finder. Find the ISO week number (1-53) for any date. Uses international ISO 8601 standard with Monday as week start.

Free century calculator. Find which century any year falls in—1st, 20th, 21st, etc. Understand historical and future century classifications.

Free decade calculator. Find which decade any year falls in—the 1990s, 2000s, 2020s, etc. Quick decade classification for any year.

Free semester calculator. Find semester start and end dates, week numbers, and duration. Perfect for academic planning.

Free timezone offset lookup. Find the UTC offset for any world timezone. Essential for international scheduling and programming.

Free DST checker. Check if Daylight Saving Time is active for any timezone or location. Plan around time changes accurately.

Free DST date lookup. Find when Daylight Saving Time starts and ends for any year and location. Plan around clock changes.

Free GMT time converter. Convert any time to or from Greenwich Mean Time. Essential for international time coordination.

Free UTC time converter. Convert any time to or from Coordinated Universal Time. The global standard for time coordination.

Free sidereal time calculator. Calculate local sidereal time for astronomical observations. Essential for telescope pointing and star tracking.

Free astronomical Julian Day calculator. Convert dates to Julian Day Numbers for astronomical calculations. Essential for ephemeris work.

Free online stopwatch with lap timing. Accurate timing for sports, experiments, and any timed activities. Start, stop, and record laps.

Free lap timer with split analysis. Record multiple laps, view averages, and compare performance. Perfect for training and racing.

Free exam countdown timer. Track days until your exams with study milestones. Stay motivated and prepared for test day.

Free conference countdown timer. Track days until your conference, convention, or industry event. Perfect for event planning.

Free anniversary countdown timer. Track days until wedding anniversaries, relationship milestones, or any special date. Never forget!

Free Easter countdown timer. Track days until Easter Sunday. Perfect for holiday planning and spring celebrations.

Free Halloween countdown timer. Count days until October 31st. Build spooky anticipation for the Halloween season.

Free Valentine's Day countdown timer. Track days until February 14th. Plan romantic celebrations and gift giving.

Free zodiac sign finder. Find your astrological sun sign based on your birthdate. Discover your Western zodiac sign and dates.

Free Chinese zodiac finder. Discover your Chinese zodiac animal sign based on your birth year. Learn about your Chinese astrology.

Free Hebrew calendar converter. Convert dates between the Hebrew and Gregorian calendars. Essential for Jewish holiday planning.

Free Islamic calendar converter. Convert dates between Hijri and Gregorian calendars. Essential for Islamic holiday planning.

Free Gregorian calendar converter. Convert Julian, Hebrew, Islamic, and other calendar dates to the Gregorian calendar used worldwide.

Free leap year checker. Find out if any year is a leap year with February 29th. Understand the leap year rules and patterns.

Free century calculator. Find which century any year belongs to and explore century date ranges. Perfect for historical research.

Free generation calculator. Find your generational cohort: Gen Z, Millennial, Gen X, Boomer, and more. Understand generational demographics.

Free midnight countdown timer. See exactly how much time remains until midnight tonight. Track the end of your day.

Free weekend countdown timer. See how long until Friday evening or Saturday. Perfect for work-week motivation.

Free holiday countdown timer. See how long until the next holiday or day off. Track upcoming holidays automatically.

Free seconds to time converter. Convert total seconds to HH:MM:SS format. Essential for video editing and time calculations.

Free time to seconds converter. Convert HH:MM:SS format to total seconds. Essential for calculations and programming.

Free minutes to hours converter. Convert total minutes to hours and remaining minutes. Simple time unit conversion.

Free hours to minutes converter. Convert hours (including decimals) to total minutes. Quick time unit conversion.

Free hours to days converter. Convert total hours to days and remaining hours. Perfect for time tracking and scheduling.

Free days to hours converter. Convert any number of days to total hours. Simple time unit conversion calculator.

Free days to weeks converter. Convert any number of days to weeks and remaining days. Simple time duration conversion.

Free weeks to days converter. Convert any number of weeks to total days. Quick time unit conversion calculator.

Free meeting planner for multiple time zones. Find overlapping work hours across global teams. Schedule international meetings easily.

Free world clock with multiple time zones. See current time in cities worldwide simultaneously. Track global times at a glance.

Free day of year calculator. Convert any date to its ordinal day number (1-365 or 366). Essential for scheduling and programming.

Free day of year to date converter. Convert ordinal day numbers back to calendar dates. Essential for data processing.

Free city time difference calculator. Find exact hours between any two cities worldwide. Account for DST and timezone offsets.

Free event duration calculator. Calculate exact duration between event start and end times. Perfect for scheduling and billing.

Free productivity timer with custom intervals. Set your own focus and break durations. Boost productivity with structured work sessions.

Free next birthday calculator. Find what day your next birthday falls on and how many days until it arrives. Track any birthday.

Free work hours calculator. Calculate daily or weekly work hours from clock in/out times. Include breaks and overtime.

Free shift hours calculator. Calculate hours worked during any shift including overnight shifts. Perfect for scheduling.

Free schedule gap finder. Find available time slots between your appointments. Identify free time in busy schedules.

Free age in months calculator. Calculate total months since birth for babies and toddlers. Perfect for pediatric milestones.

Free age in days calculator. Find exactly how many days you've been alive. Fun statistic for birthdays and milestones.

Free age in hours calculator. Find exactly how many hours you've been alive. Fascinating life statistic for the curious.

Free date rollover calculator. Find what date results from adding or subtracting days across month and year boundaries.

Free date sequence generator. Create lists of consecutive dates for any range. Perfect for schedules and planning.

Free seasonal period calculator. Find which season any date falls in—spring, summer, fall, winter. Support for both hemispheres.

Free half-life calculator. Calculate time for substances to decay to half their value. Essential for science and pharmacology.

Free time to decimal converter. Convert hours and minutes to decimal format for timesheets and calculations. 1:30 becomes 1.5.

Free decimal to time converter. Convert decimal hours back to hours and minutes. 1.5 becomes 01:30.

Free 24-hour to 12-hour converter. Convert military time to AM/PM format. 14:00 becomes 2:00 PM.

Free 12-hour to 24-hour converter. Convert AM/PM time to military format. 2:00 PM becomes 14:00.

Free military time converter. Convert AM/PM time to military format without colon. 2:45 PM becomes 1445.

Free birth year calculator. Find what year someone was born based on their current age. Simple reverse age calculation.

Free half-birthday calculator. Find what date falls exactly 6 months after your birthday. Celebrate your half-birthday!

Free golden birthday calculator. Find the date when you turn the same age as your birth day number. Turning 15 on the 15th!

Free 10,000 day birthday calculator. Find the exact date you turn 10,000 days old—about 27 years. A unique milestone to celebrate!

Free retirement countdown calculator. See exactly how many days until your retirement. Track your countdown to freedom with precise calculations.

Free anniversary countdown calculator. Count days until your next wedding anniversary or special milestone date. Never forget an important anniversary.

Free Christmas countdown calculator. See exactly how many days until December 25th. Track your countdown to Christmas with weeks and days breakdown.

Free New Year countdown calculator. See exactly how many days until January 1st. Track your countdown to the new year with weeks and days breakdown.

Free pay period calculator. Determine your current biweekly or monthly pay period boundaries. Track when your next paycheck arrives.

Free biweekly pay date calculator. Find your next payday and see upcoming pay dates for the next 3 months. 14-day pay cycle calculator.

Free monthly pay date calculator. Find your next monthly payday and see upcoming pay dates. Supports any day of the month for pay.

Free work hours calculator. Calculate total hours worked from start and end times. Essential for timesheets, payroll, and personal time tracking.

Free shift hours calculator. Calculate shift duration for any work schedule including overnight and rotating shifts. Supports midnight crossovers.

Free billable hours calculator. Convert work time to decimal hours for invoicing and time tracking. Perfect for consultants and freelancers.

Free timezone converter. Convert any time between timezones with DST handling. Essential for international scheduling and global team coordination.

Free timezone offset calculator. Find UTC offset for any timezone with DST awareness. Essential for developers and international schedulers.

Free world clock tool. See current local time in any city or timezone. Compare times across multiple regions simultaneously.

Free timezone meeting planner. Compare working hours across timezones to find the best meeting time. Perfect for global team scheduling.

Free duration to seconds converter. Convert HH:MM:SS format to total seconds instantly. Perfect for video editing and time tracking.

Free HH:MM:SS to seconds converter. Convert hours, minutes, seconds to total seconds. Essential for video editing and programming.

Free seconds to HH:MM:SS converter. Convert total seconds to hours:minutes:seconds format. Perfect for video and audio timing.

Free minutes to hours converter. Convert minutes to decimal hours for billing and timesheets. 90 minutes = 1.5 hours instantly.

Free duration in minutes calculator. Convert minutes to decimal hours for billing and time tracking. Essential for payroll processing.

Free hours to minutes converter. Convert decimal hours like 1.5 to 90 minutes instantly. Perfect for time calculations and scheduling.

Free hours to days converter. Convert hours to decimal days for project planning. 36 hours = 1.5 days calculated instantly.

Free duration in hours calculator. Convert hours to days for long-term planning. Essential for project management and scheduling.

Free days to hours converter. Convert days to hours for detailed scheduling. 1.5 days = 36 hours calculated instantly.

Free days to weeks converter. Convert days to weeks for project planning. 14 days = 2 weeks calculated instantly.

Free duration in days calculator. Convert days to weeks for project planning. Essential for sprint planning and scheduling.

Free weeks to days converter. Convert weeks to days for detailed planning. 2 weeks = 14 days calculated instantly.