Timezone Overlap

when everyone’s working, at a glance

the chosen date refers to the first city in the list

working hours — drag the amber edges to fine-tune everyone’s free

This tool is provided for informational purposes only. We make no guarantees as to the accuracy of time zone calculations or overlap results.

How it works

Timezone Overlap is a free meeting planner for remote and distributed teams. Pick two to four cities, set each person’s working hours, and every city gets a 24-hour bar aligned to one shared timeline, anchored to the first city’s day. Amber marks working hours, green marks the moments everyone is available, and the best shared window is spotlighted and listed in each city’s local time, ready to paste into an invite.

  1. Add cities. Start typing — the search covers 150+ major cities and every IANA time zone, including half-hour offsets like India’s.
  2. Set working hours. Adjust each row with the dropdowns or drag the amber edges; overnight shifts such as 22:00–06:00 work too.
  3. Read the green. The result panel shows the best meeting time simultaneously in every selected city, with explicit dates when calendars differ.

Frequently asked questions

How do I find the best meeting time across time zones?

Add two to four cities, set each person’s working hours, and read the bars: amber is each city’s working day, green is when every city overlaps. The result panel pins the longest shared window and shows it in everyone’s local time at once.

What is the best time for a meeting between New York and London?

With standard 9-to-5 working hours, the shared window is usually 9:00 a.m. to 12:00 p.m. in New York, which is 2:00 to 5:00 p.m. in London — about three hours per workday. For a few weeks each spring and autumn the gap shifts by an hour, because the US and UK change their clocks on different dates; pick the actual date in the tool and the result adjusts automatically.

Does the tool handle daylight saving time (DST)?

Yes. All calculations use your browser’s built-in IANA time zone data, so daylight saving transitions, 23- and 25-hour days, half-hour offsets like India, and date-line crossings are handled automatically for any date you choose.

Can people in different time zones see the same plan?

Yes. The address bar always encodes your cities, working hours and chosen date. Copy the link and anyone who opens it sees exactly the same setup, anchored to the first city’s calendar day.

Is Timezone Overlap free?

Yes — it’s completely free, requires no account, and runs entirely in your browser; nothing you enter is sent to a server.