Show HN: SyncHours – drag one slider to find your remote team's overlap hours (play.google.com)

Hi HN, I built SyncHours because I was tired of doing timezone arithmetic in my head every time I tried to schedule something with a distributed team. Every "world clock" app shows you the time in each city, but none of them show you when everyone's actually awake and working at the same time — you still have to do the math yourself, city by city. SyncHours flips that: you stack your team's cities in a list, and drag a single scrubber across a 24-hour timeline. Every city's row updates live, color-coded into working hours, fringe hours, and rest hours, so you can see at a glance who's free, who's stretching, and who's asleep. There's also a one-tap "find best overlap" that scans the day for you instead of you hunting for it. A few things I cared about: - No signup. Open it, add cities, done. I wanted to be able to send a link to a teammate and have them use it in 10 seconds, not create an account first. - Shareable links, so you can send a specific overlap window instead of describing it in words ("Tuesday, my morning, your evening, ugh"). - Calendar export once you've picked a time. It's a solo side project — free, Android only for now (I'd love iOS but haven't gotten there yet). Built it for my own team originally and figured other people doing remote/distributed work have the same annoyance. Happy to answer questions about how it works or why I made specific choices — and very open to "this is missing X" feedback, since it's still evolving based on what I personally hit.