What this tool does
Scheduling across timezones is mostly arithmetic plus daylight-saving surprises. Pick a date and time, and this planner shows the same instant in 13 common hubs, marking working hours and late-night slots.
How to use it
- Pick a date and time in your local timezone.
- Scan the 13 zones for the best overlap.
- Use the marked working-hours rows to choose a slot.
Questions
Is daylight saving handled?
Yes. Each value is formatted by Intl with the IANA timezone database built into your browser.
What counts as working hours?
09:00–17:59 local time. Night mode marks hours before 07:00 or from 22:00.
Which timezone is the input in?
Your browser's local timezone. The result list shows the same instant everywhere.