Precision Tools for Every Second.
Experience the ultimate suite of date, time, calendar, and countdown utilities designed for speed, accuracy, and a premium user experience.
Our Precision Utilities
A comprehensive collection of 104 high-precision tools built for developers, travelers, planners, and everyday productivity.
Date Calculator
Add or subtract days, weeks, months, and years from any date to find the resulting target date, day of week, and ISO week number.
Open CalculatorReverse Due Date Calculator
Calculate estimated conception dates and pregnancy milestones based on your due date or last period.
Open CalculatorPregnancy Due Date Calculator
Estimate your expected due date (EDD), current gestational age, and track critical timeline milestones.
Open CalculatorOvulation Date Calculator
Find your peak fertile window, predicted ovulation dates, and prospective due dates for the next 6 cycles.
Open CalculatorAge Calculator
Calculate your exact age in years, months, and days with total time breakdowns.
Open CalculatorDate Difference Calculator
Calculate the exact duration between two dates in years, months, days, weeks, weekdays, and weekend days.
Open CalculatorBusiness Days Calculator with Holidays
Calculate working days between dates, automatically excluding weekends and public bank holidays for US, UK, Canada, Australia, India, and more.
Open CalculatorWeek Number Calculator
Find the exact ISO 8601 week number, start and end dates of the week, and annual completion percentage for any date.
Open CalculatorDays Between Dates
Calculate the exact number of days, weeks, and hours between two target dates.
Open CalculatorWeek Calculator
Calculate weeks between dates, add/subtract weeks, and find ISO or US week number details.
Open CalculatorMonth Calculator
Calculate months between dates, offset dates by months, and view month-specific characteristics.
Open CalculatorYear Calculator
Calculate years between dates, offset dates by years, and view leap year and zodiac details.
Open CalculatorLeap Year Calculator
Check leap years with detailed mathematical reasoning and calculate all leap years within custom ranges.
Open CalculatorDay of the Week Calculator
Find the day of the week for any date, inspect calendrical details, and calculate weekday occurrences.
Open CalculatorExact Age Calculator
Calculate chronological age by date of birth down to seconds, or calculate exact age differences.
Open CalculatorChronological Age Calculator
Calculate your precise chronological age in years, months, and days from your date of birth.
Open CalculatorBirthday Calculator
Calculate days until your next birthday, see future birth weekdays, and track lifetime milestones.
Open CalculatorHalf Birthday Calculator
Find your next half-birthday date, calculate countdowns, and track future half-birthday weekdays.
Open CalculatorAnniversary Calculator
Calculate countdowns to your next anniversary, track elapsed years, and explore traditional gift guides.
Open CalculatorAge Calculator by date of birth
Calculate your exact chronological age or compare the age difference between two people with accuracy.
Open CalculatorDate Plus Days
Add or subtract days, weeks, and months from any date with precision.
Open CalculatorSubtract Days from Date
Deduct days, weeks, months, or years from any custom starting date.
Open CalculatorBusiness Days Calculator
Calculate business/working days between dates, or add/subtract business days easily.
Open CalculatorWorking Days Calculator
Calculate custom working days between dates, exclude holidays, and offset start dates with custom weekend models.
Open CalculatorDays From Today
Calculate exactly how many days until a future date or since a past event.
Open CalculatorRetirement Date
Determine your exact retirement date based on age and track the remaining time.
Open CalculatorSchool Age Calculator
Calculate your child's grade level eligibility, age at cutoff, and view their complete K-12 academic pathway.
Open CalculatorTime Zone Converter
Convert time across world time zones instantly. Compare NY to India (IST), London, and global hubs with live offsets.
Open ToolEST to IST Converter
Convert US Eastern Time (EST/EDT) to India Standard Time (IST) instantly with automatic Daylight Saving detection.
Open ToolPST to IST Converter
Convert US Pacific Time (PST/PDT) to India Standard Time (IST) instantly with automatic Daylight Saving detection.
Open ToolIST to EST Converter
Convert India Standard Time (IST) to US Eastern Time (EST/EDT) instantly with automatic Daylight Saving detection.
Open ToolIST to PST Converter
Convert India Standard Time (IST) to US Pacific Time (PST/PDT) instantly with automatic Daylight Saving detection.
Open ToolIST to GMT Converter
Convert India Standard Time (IST) to Greenwich Mean Time (GMT/BST) instantly with automatic Daylight Saving detection.
Open ToolUTC to IST Converter
Convert Coordinated Universal Time (UTC) to India Standard Time (IST) instantly with fixed +5:30 offset precision.
Open ToolLondon to India Time Converter
Convert London, UK Time (GMT/BST) to India Standard Time (IST) instantly with automatic Daylight Saving detection.
Open ToolNew York to India Time Converter
Convert New York Time (EST/EDT) to India Standard Time (IST) instantly with automatic Daylight Saving detection.
Open ToolTime Duration Calculator
Calculate elapsed hours, minutes, and seconds between times, handle overnight shifts, add/subtract time, and tally timesheets.
Open ToolTime Addition Calculator
Add or subtract hours, minutes, and seconds to any time, or sum multiple duration blocks together with decimal conversion.
Open ToolTime Subtraction Calculator
Subtract hours, minutes, and seconds from any starting time, or compute net differences between duration blocks accurately.
Open ToolTime Difference Calculator
Calculate the exact time difference between two clock times or two world cities with DST offsets and decimal hours.
Open ToolHours Calculator
Calculate payable work hours, subtract lunch breaks, convert minutes to decimal hours, and estimate earnings for payroll.
Open ToolDecimal Hours Calculator
Convert hours and minutes to decimal hours or vice-versa, calculate gross wages, and apply FLSA 15-minute rounding rules.
Open ToolMinutes Calculator
Calculate elapsed minutes between times, convert minutes to hours and days, or add/subtract minute offsets.
Open ToolSeconds Calculator
Convert seconds to days, hours, and minutes, compute exact elapsed seconds between timestamps, or add/subtract seconds.
Open ToolUnix Timestamp Converter
Convert Unix epoch timestamps to human UTC and local dates, generate timestamps from dates, and view code snippets.
Open ToolTimestamp Converter
Universal multi-format parser for Unix seconds/ms, ISO 8601, RFC 2822, Windows FileTime, and Julian Dates with batch mode.
Open ToolUnix Timestamp Generator
Generate future/past epoch offsets, random mock database timestamps, and Discord timestamp tags.
Open ToolWork Hours Calculator
Calculate total weekly work hours, split shifts, lunch breaks, regular vs overtime hours (1.5x), and gross pay.
Open Tool12-Hour Clock
A classic digital clock featuring AM/PM indicators, millisecond accuracy, and a high-contrast display.
Open ToolCurrent Local Time
Check the exact current time in your location with millisecond precision and time zone details.
Open ToolLive Digital Clock
A full-screen, high-precision digital clock for your desktop, featuring 12/24 hour formats.
Open ToolLive Analog Clock
A classic, high-precision analog clock face with a smooth sweep second hand.
Open ToolFull Screen Clock
A minimalist, high-contrast clock designed for distraction-free full-screen viewing.
Open Tool24-Hour Clock
A precise, international-standard digital clock with a 24-hour cycle and millisecond accuracy.
Open ToolMilitary Time Clock
A professional 24-hour live clock online, perfect for military, medical, and aviation needs.
Open ToolOnline Alarm Clock
A reliable web-based alarm clock with custom sounds, snooze options, and multiple alarm support.
Open ToolFloating Desktop Clock
A minimalist "always on top" clock widget using Picture-in-Picture technology for multitasking.
Open ToolSpeaking Clock
A professional talking clock that provides real-time voice time announcements and intervals.
Open ToolUTC Clock
Check Coordinated Universal Time (UTC) with atomic-level precision, compare local offsets, and toggle full-screen Zulu time.
Open ToolGMT Clock
Check Greenwich Mean Time (GMT) with high precision, compare your local time offsets, and view the live astronomical baseline.
Open ToolIST Clock
Check Indian Standard Time (IST) with high precision, compare your local time offsets, and view the live baseline for the subcontinent.
Open ToolWorld Clock
Track the exact current time across multiple major global cities simultaneously, compare relative time zones, and coordinate international meetings.
Open ToolCountry Time Finder
Search any country in the world to instantly find its current local time, capital city, relative time zone offset, and DST rules.
Open ToolCity Time Finder
Search any major city in the world to instantly find its current local time, country, timezone offset relative to you, and DST rules.
Open ToolMulti Time Zone Clock
Create a highly customizable dashboard of international clocks. Add, delete, and custom-order time zone cards that persist automatically.
Open ToolBrowser Clock
Track your web browser's exact client-side ticking time online, and analyze live system diagnostic parameters in a single dashboard.
Open ToolTime Zone Clock
Search any global IANA standard timezone or capital to instantly view its exact ticking digital time, UTC offset, and DST rules.
Open ToolAtomic Clock Sync
Synchronize with the exact atomic clock standard online, measure your local device quartz crystal drift, and audit network latency.
Open ToolUnix Time Clock
Monitor the live-ticking Unix Epoch timestamp in POSIX seconds, convert custom date-time values bidirectional, and check Y2K38 countdown indicators.
Open ToolEpoch Time Clock
Compare the ticking chronologies of major computing epochs. Ticks Unix, GPS, Windows, Classic Mac, and Excel systems side-by-side.
Open ToolInternet Time Clock
Track the live Swatch Internet Time standard in global decimal beats (@000-@999) timezone-free, and convert local hours.
Open ToolStopwatch Clock
Track elapsed time with high-precision millisecond intervals, manage dynamic laps with peak indicators, and export splits.
Open ToolMeeting Time Clock
Plan international calls and coordinate distributed teams. Scrub through 24-hour zones side-by-side to visually identify perfect overlaps.
Open ToolUnix Timestamp
Convert human-readable dates to Unix timestamps and vice-versa (Coming Soon).
DateTimeTrackCalendar Generator
Create and print custom annual, monthly, and quarterly calendars with public holidays, Sunday/Monday start, and CSV/iCal export.
Open GeneratorPrintable Calendar
Print clean monthly and annual PDF calendar templates in Portrait or Landscape with notes sections and national holidays.
Open PrintableMonthly Calendar
Track month-by-month events, astronomical moon phases, ISO week numbers, and working business days with iCal/CSV export.
Open PlannerYearly Calendar
12-month full year calendar and planner for 2026, 2027 and beyond with Q1-Q4 quarterly breakdown and printable PDF export.
Open AnnualHoliday Calendar
Global public holiday calendar with next-holiday live countdown and long weekend PTO vacation optimizer for US, UK, India & more.
Open HolidaysBusiness Calendar
Corporate working days and fiscal year calendar planner. Calculate monthly workdays, billable hours, and gross revenue projections.
Open BusinessWorkday Calendar
Count working days between dates, calculate SLA delivery deadlines by adding business days, and model 4-on-4-off rotating shifts.
Open WorkdaysWeek Number Calendar
Track current ISO-8601 week numbers, convert dates to weeks, browse 52/53 weeks master tables, and export iCal calendars.
Open Week CalendarBlank Calendar
Print fillable blank monthly calendars with notes, 1-page annual charts, 12-page booklets, and weekly time-block planners.
Open BlankMonday Start Calendar
ISO-8601 Monday-first calendar planner. Keeps Saturday and Sunday grouped together for seamless weekend planning.
Open Monday StartSunday Start Calendar
Traditional Sunday-first calendar planner for North America. Formats Sunday to Saturday monthly planners and 12-month grids.
Open Sunday StartPublic Holidays 2026 & 2027
Explore official federal bank holidays, long weekend PTO vacation planners, and live countdowns for US, UK, India, Canada, Australia & more.
Open CalendarCountdown Timer
Create a custom live countdown to any specific date and time with second-by-second updates.
Open ToolValentine's Day Countdown
Track every day, second, and heartbeat until February 14th with our romantic live timer and Valentine's week guide.
Open ToolHalloween Countdown
Track every day and second until October 31st with our spooky live timer, costume ideas, and Halloween lore.
Open ToolThanksgiving Countdown
Track every day and second until US and Canadian Thanksgiving with our feast guide and turkey thawing calculator.
Open ToolEaster Countdown
Track every second until Western and Orthodox Easter Sunday with our Computus calendar and Holy Week tracker.
Open ToolIndependence Day Countdown
Track every day and second until the 4th of July and global freedom holidays with live fireworks and BBQ guides.
Open ToolSummer Countdown
Track every day and second until the Summer Solstice and meteorological summer with our sunny bucket list guide.
Open ToolWinter Countdown
Track every day and second until the Winter Solstice and snow season with our cozy winter activity guide.
Open ToolExam Countdown
Track exact days and hours until finals, SAT, MCAT, or Bar exams with study time calculators and Pomodoro trackers.
Open ToolVacation Countdown
Track every day and hour until your next holiday with workdays left calculators and interactive packing checklists.
Open ToolWedding Countdown
Track every day, hour, and heartbeat until your wedding day with couple customizers and milestone checklists.
Open ToolEvent Countdown
Track exact days and hours until concerts, launches, conferences, and sports matches with production checklists.
Open ToolChristmas Countdown
Track every second until December 25th with our live, festive holiday timer.
Open ToolNew Year Countdown
Watch the global countdown to 2027 with our live, high-precision New Year timer.
Open ToolDiwali Countdown
Track every second until the 2026 Festival of Lights with our live, warm-themed timer.
Open ToolBirthday Countdown
Track every second until your next big day with our live, personalized birthday timer.
Open ToolDurga Puja Countdown
Celebrate the arrival of the Goddess by tracking every second until October 16, 2026.
Open ToolMidnight Countdown
Track every second until 12 AM with our live high-precision midnight timer.
Open Tool