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Global Overlap
See when everyone’s working hours overlap, then book it
Add the people you work with and see when everyone's working hours line up on one timeline. Drag to any hour for the local time in each place, then send a slot to Google Calendar, Outlook, Teams or Meet. In the browser or your Mac menu bar. Free, no account.
Hi Product Hunt, I'm Son. I make small, single-purpose apps under the name usefulisms.
I built Global Overlap because I kept doing timezone arithmetic in my head and getting it slightly wrong. When you work with people in a few countries, the question is rarely what time it is somewhere. It is which hours you are all actually at work.
So Overlap stacks everyone's working hours on one timeline and lights up the hours where they overlap. Drag to any hour and you see the local time in each place. When you find a slot, send it to Google Calendar, Outlook, Teams or Google Meet, or download an .ics, already filled in for every participant.
Every city carries its IANA timezone, so daylight saving is handled for you. That is relevant this month: Europe changes its clocks on October 25 and the US on November 1, so for one week London and New York are four hours apart instead of five.
It runs in the browser, or as a menu-bar app on macOS 11 and later. No account, no backend, no tracking, nothing uploaded. It is free.
What would you want it to do that it does not yet? I am particularly curious how you handle colleagues who keep unusual hours.
About Global Overlap on Product Hunt
“See when everyone’s working hours overlap, then book it”
Global Overlap was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #68 on the daily leaderboard. Add the people you work with and see when everyone's working hours line up on one timeline. Drag to any hour for the local time in each place, then send a slot to Google Calendar, Outlook, Teams or Meet. In the browser or your Mac menu bar. Free, no account.
On the analytics side, Global Overlap competes within Productivity, Calendar and Remote Work — topics that collectively have 699.8k followers on Product Hunt. The dashboard above tracks how Global Overlap performed against the three products that launched closest to it on the same day.
Who hunted Global Overlap?
Global Overlap was hunted by Son Thomsen. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Global Overlap including community comment highlights and product details, visit the product overview.
Son Thomsen