Date & Time Tools

Work with dates and times without the mental arithmetic. Calculate your exact age, count the days or business days between two dates, convert between time zones, see the time around the world, and count down to an event.

8 free tools · no account required · works on any device.

Age Calculator Free age calculator: find your exact age in years, months and days from your date of birth, plus total days lived and the countdown to your next birthday. Business Days Calculator Free business days calculator: count the working days (Monday to Friday) between two dates, excluding weekends. Ideal for deadlines and delivery estimates. Countdown Timer Free online countdown timer: set a target date and time and watch a live countdown in days, hours, minutes and seconds to a birthday, holiday or event. Date Difference Calculator Free date calculator: count the days between two dates and see the difference in weeks, months and years. Optionally include the end date in the count. Leap Year Checker Free leap year checker: find out whether any year is a leap year with 366 days, with a clear explanation of the divisible-by-4, 100 and 400 rule. Time Zone Converter Free time zone converter: convert a date and time between any time zones such as EST, PST, GMT, IST and CET, with daylight saving time applied for you. Week Number Calculator Free week number calculator: find the ISO 8601 week number for any date, plus the Monday-to-Sunday date range of that week. Know what week it is. World Clock Free world clock: see the current local time in New York, London, Dubai, Tokyo and cities worldwide, updating live. Add or remove cities to suit you.

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