Every tool in this category is free — runs in your browser, files never leave your device.
Find your exact age in years, months and days — plus total days and next birthday
Date & TimeFind the gap between two dates in years, months, days — including working days
Date & TimeConvert any English date to the Bangla calendar (Bongabdo) — with season and weekday
Date & TimeOnline stopwatch with laps and a countdown timer with a real alarm
Date & TimeFocus timer with automatic breaks, session tracking and a real alarm
Date & TimeLive world times side by side with hour differences from your local time
Date & TimeExactly how many days, hours and live seconds you have been alive
Date & TimeConvert any date and time across timezones — DST-correct, multi-city
Date & TimeCount business days between dates — Sat-Sun or Fri-Sat weekends, holidays excluded
Date & TimeAdd or subtract days, weeks, months, or years to a start date with options to exclude weekends
Date & TimeTrack the days, hours, minutes, and seconds until an event with a live ticker and shareable link
Date & TimeInput any date to find the corresponding weekday, day of the year, and week number
Date & TimeCheck if a specific year is a leap year and view nearby leap years
Date & TimeSelect a month and year to find the exact number of days, accounting for leap years
Date & TimeCalculate the days, hours, minutes, and seconds remaining until your next birthday with zodiac listings
Date & TimeCalculate years, months, and days elapsed since relationship start dates and upcoming milestone dates
Date & TimeCalculate the exact years, months, and working hours remaining until your target retirement age
Date & TimeFind overlapping business hours (9 AM - 5 PM) across three global time zones to plan remote meetings
Date & TimeCalculate the exact distance (years, months, weeks, days) between two dates client-side
Date & TimeSubtract days, weeks, months, or years from any date client-side
Date & TimePrecise browser-based stopwatch with split/lap timing support
Date & TimeSet custom count down timers with self-contained audio alarms client-side
Date & TimeCompare hour slots across global timezones client-side to schedule the best meeting window
Date & TimeConvert Unix epoch timestamps client-side to human-readable dates (UTC and Local)
Date & TimeConvert dates client-side to Unix epoch timestamps (seconds and milliseconds)
Date & TimeView the real-time Unix epoch timestamp ticking in seconds and milliseconds client-side
Date & TimeIdentify the ISO-8601 week number and day of year for any date client-side
Date & TimeCalculate actual working days (excluding weekends) between two dates client-side
Date & TimeConvert standard English Gregorian dates to official Bengali Calendar dates client-side
Date & TimeConvert Bengali calendar dates to Gregorian English dates client-side
Date & TimeView today's date in the official Bengali calendar (Bangabda) client-side
Date & TimeConvert standard Gregorian dates to Islamic Hijri dates client-side
Date & TimeView today's date in the Islamic Hijri calendar client-side
Date & TimeCalculate your exact age in Islamic lunar Hijri years client-side
Date & TimeCalculate duration in hours, minutes, and seconds between two times client-side
Date & TimeCalculate total hours worked with break deductions client-side
Date & TimeCalculate regular and overtime work hours client-side based on custom thresholds
Date & TimeConvert standard 12-hour AM/PM clock time to 24-hour Military time formats client-side
Date & TimeConvert minutes to hours and decimal formats client-side
Date & TimeConvert seconds to minutes, hours, days, and formatted duration strings client-side
Date & TimeConvert standard hours and minutes to decimal hours client-side
Date & TimeGenerate and print custom monthly calendars for any month and year client-side
Date & TimeConvert dates to multiple international formats instantly client-side
Date & TimeIdentify standard calendar quarters and fiscal quarter spans client-side
Date & TimeCalculate standard daily time difference client-side with AM/PM support
Date & Time