The hour that works for everyone.

If you work with people in other countries, you know the routine. Google "time in Bengaluru", count on your fingers, get it wrong twice a year when the clocks change, then send an email with the wrong time in it. Overlap puts everyone's day on one board so the answer is just there.

It is four small tools in one file, and it runs on your computer. No account, no calendar access, no monthly fee.

MEETING FINDER

• Add people and their cities from a built-in list of almost 400, or any time zone in the world
• Set each person's best hours, the hours they would take a call if needed, and the days they can meet
• Everyone's day lined up on one board, with their local hours printed right on it
• The overlap lights up: where everyone is at their best, and where it works if someone stretches
• Drag to try a time and see every person's local time next to their name, including when it is tomorrow for them
• Best times for the day, and a week chart that shows which day has the most overlap
• Copy one line ("Tue 27 Oct, 9:00 New York / 13:00 London / 18:30 Bengaluru"), copy with names, or save a calendar invite
• A warning when any country changes its clocks before your meeting, and what that does to the gap between you
• Save several plans: the weekly team call, the client check-in, the family call

WORLD CLOCKS

• Big live clocks for the cities you care about, shaded for day, dusk and night
• Real sunrise and sunset for each city, and how far ahead or behind you it is
• Look ahead slider: what time will it be everywhere at 4pm your time?

DATE CALCULATOR

• Days between two dates, in days, weeks and months, plus the working days
• Working days skip weekends and holidays: load US federal or UK bank holidays for any year, or add your own
• Add or take away days, working days, weeks or months ("30 working days from today")
• Age and anniversaries, the day of the week you were born, and when your next 1,000-day milestone falls
• ISO week numbers, day of the year, quarter

COUNTDOWNS

• Count down to a launch, a trip, a birthday or a deadline, in that city's own time
• Days, hours, minutes and seconds, plus working days to go
• A full-screen view for a screen share or a TV on the wall

Who it's for

Remote workers and teams across time zones, freelancers with overseas clients, anyone with family abroad, and people who plan trips and deadlines.

What you get

• Overlap (one .html file, runs in your browser, offline)
• A 2-page quick-start guide

Good to know

• One file. No install, no account, no subscription, no internet needed after download.
• Your data stays on your computer. Export a backup any time; import it on another machine.
• Built for a computer screen: Windows or Mac, in Chrome, Edge, Safari or Firefox.
• Instant download.

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