Date & Time Tools

Count the days to a deadline, find the date 30 days from now, check the week number, and plan calls across time zones.

Free, no sign-up Runs in your browser
Dates

Count days and find dates

How many days until a deadline, what date is 30 days from today, and which week of the year it is.

Time

Time zones, timers and timestamps

Plan calls with clients in other countries, time your work, and turn computer timestamps into readable dates.

Good to know

How we count

  • Whole calendar days

    Dates are counted as whole days, so daylight saving time changes never add or lose a day. Leap years are included.

  • Your browser's time zone rules

    Time zones use the rules built into your browser, which your browser and device updates keep current.

  • Nothing is sent

    Every answer is worked out on your own device. No sign-up, and nothing is saved.

Guide

Which date or time tool do I need?

I want to…Use
Count the days until a deadline or eventDays between dates
Find the date 30 days from todayAdd or subtract days
Find an invoice due date on Net 30 termsAdd or subtract days
Count working days, skipping holidaysBusiness days calculator
Find what week of the year it isWeek number
Find a meeting time with a client abroadTime zone converter
Set a countdown or use a stopwatchTimer & stopwatch
Add up hours worked this weekTimesheet calculator

Frequently asked questions

Do daylight saving changes affect the day counts?

No. Dates are counted as whole calendar days, so clock changes never add or lose a day. The time zone converter does include clock changes, using your browser's time zone rules.

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