Date & Time
Date & Time Calculators
8 free calculators
Date and time tools for planning and paperwork — find the exact difference between two dates, count business days excluding weekends, add or subtract days, weeks, months or years, run a live countdown to any event, and add or subtract time durations in hours, minutes and seconds.
Add/Subtract Date
Add or subtract any number of days, weeks, months, or years from a start date to find the resulting date and day of the week — useful for deadlines, due dates, and planning.
Countdown Timer
Create a live countdown to any future date and time — watch days, hours, minutes, and seconds tick down in real time for any event or deadline.
Date Difference
Calculate the exact difference between any two dates — displayed in years, months, and days, plus total days, weeks, and hours.
Days to Retirement
Count down to retirement — see exactly how many years, months, weeks and days remain until you retire, from your date of birth and chosen retirement age.
Leap Year
Check whether any year is a leap year and understand why — with the number of days in February, days in the year, and the next five leap years.
Time Calculator
Add or subtract two time durations in hours, minutes and seconds. See the result in h:m:s and as total hours, minutes and seconds — handy for timesheets and scheduling.
Time Zone
Convert a time from one time zone to another across major world cities — IST, UTC, US, Europe, Dubai, Singapore, Tokyo and more — with day-change and DST handling.
Working Days
Count the exact number of working days between any two dates, with the option to exclude weekends and India's national public holidays.