Time zones, side by side

The hours your team shares, at a glance.

Add everyone's city and working hours. Zoneline lines up each day, finds the three best windows to meet, and turns the whole view into one link you can send.

Free to use · No sign-up · Your team lives in the link, not on our servers

Scrub the day Drag, or use arrow keys
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Examples

Best windows

How it works

For the 9am that's somebody's midnight.

  • Every day, side by side

    Each person gets a row tinted from dawn to night, so you can see who's starting, who's wrapping up, and who should be asleep.

  • The three best windows

    We rank the stretches where working hours overlap. When nothing fits everyone, you get the least-bad hour and exactly who is stretching for it.

  • Daylight saving, handled

    Real IANA time zones, straight from your browser. Pick any date to see 23- and 25-hour days, and the weeks when the usual gap shifts.

  • One link, whole team

    Names, cities, hours and the date all travel in the URL. Paste it in a chat or an email and it opens exactly as you left it.

The gap week

Twice a year, the Atlantic gets an hour shorter.

Europe and North America change their clocks on different weekends. For a week or two each spring and autumn, New York sits four hours from London instead of five — and every shared window moves with it.

It's an easy hour to lose in your head. Zoneline does the arithmetic with the same time-zone database your devices use, for any date you pick.

Who it's for

Teams that live in more than one daylight.

Distributed product teams

Standups, design reviews and launch calls across three continents, without the spreadsheet of offsets.

Freelancers and studios

Offer times that land inside your client's working day, not just yours — and send them the link to prove it.

Founders hiring abroad

Plan interviews and first-week rituals with a new teammate in a new zone, before the first awkward 6am call.

Your whole team, one link away.

No accounts, no calendar access, nothing to install. Add people, pick a window, send the link.

Where are they?