Date & Time Tools
Plan & Calculate
Age, date math, timezones, countdowns, and work hours — every calculation runs privately in your browser.
Age Calculator
Calculate exact age in years, months, and days from date of birth.
Date Difference Calculator
Find days, weeks, months, and years between two dates.
Add Days to Date
Add or subtract days from any date to get a future or past date.
Business Days Calculator
Count weekdays (Mon–Fri) between two dates, excluding weekends.
Time Zone Converter
Convert a date and time across IST, UTC, US, Europe, and Asia zones.
Countdown Calculator
Live countdown to any target date in days, hours, minutes, and seconds.
Week Number Calculator
Find the ISO week number for any date.
Day of Week Finder
See which day of the week any date falls on.
Time Duration Calculator
Calculate hours and minutes between two times.
Date Formatter
Convert dates to ISO, US, EU, India, long format, and Unix.
Leap Year Checker
Check if any year is a leap year with the standard rules.
Work Hours Calculator
Calculate billable hours from clock in, clock out, and break time.