Which tool should you use?
- How many days until…, or how old is…: Date, Age & D-day Calculator counts days and weekdays between two dates, adds or subtracts days and gives exact age.
- What time is it there? Time Zone Converter lines up several cities and handles daylight saving time.
- Counting down or timing something: Timer, Stopwatch & Pomodoro has a countdown with alarm, a stopwatch with laps and a Pomodoro timer.
- Can’t decide, or need to pick someone fairly: Spin the Wheel.
Typical workflows
These tools often work together when organising something. Pick a date with the date calculator, find an hour that suits everyone in the time zone converter, keep the meeting on time with the timer, and spin the wheel to choose who presents first.
All times are calculated by your device using its own clock and the time zone database built into your browser.
Frequently asked questions
Does the time zone converter know about daylight saving time?
Yes. It uses your browser’s built-in time zone database, so clock changes in the US, Europe and elsewhere are applied on the right dates.
Are the wheel results really random?
Yes. The wheel uses the browser’s cryptographic random generator, and every slice has the same chance whatever its position.
Related guides
- How to schedule meetings across daylight saving time without mistakes
- How exact age is calculated, including 29 February birthdays