World time without the guesswork
What time is it there? Check a city, compare local times or find a good moment to meet.
Understand the time before you schedule it
A few things can make international plans tricky. These guides explain clock changes, confusing abbreviations and how to find a time that works.
Time zone vs. UTC offset
Why a fixed “hours ahead” number can be wrong when clocks change.
Daylight saving time
What changes, why regions switch on different dates and how to plan safely.
Schedule international meetings
A simple method for choosing and confirming a fair time across locations.
Time-zone abbreviations
Why city names are safer than ambiguous abbreviations in invitations.
Find working-hours overlap
Plan a fair recurring meeting across two or more locations.
How Numerdo works
Clock changes don’t happen everywhere at the same time. Numerdo uses the time-zone information in your browser to work out local times for the date you choose.
The tools are free to use. You can read more about how we prepare our guides on the editorial policy page.