Time Zone Converter
Set a time where you are, pick who else you care about, and see it in their clock. It's the quickest way to find a call slot that isn't the middle of somebody's night.
Convert a time across the world
Set a date and time in one place, pick where you want to know the local time, and it lines them up. Handy for booking a call that doesn't land at 3 a.m. for someone.
In New York (ET)
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Why the offsets aren't fixed
London is five hours ahead of New York in winter but only four in high summer, because the two cities switch to daylight saving on different weekends. Hard-coding "+5" would be wrong half the year, so this tool reads the offset for the exact date you enter.
That's also why you should watch the date. Convert 9 p.m. in Los Angeles and it's already the next day in Tokyo — the result spells out the weekday so a Friday-night call doesn't quietly become a Saturday for your colleague.
Under the hood it's the same time zone data your operating system uses, exposed through the browser. No server lookups, no stale tables — just the standard rules, applied to whatever moment you pick.
Frequently asked questions
How does it handle daylight saving time?
It leans on your browser's built-in time zone database, which already knows when each region springs forward or falls back. Pick a date in July or January and the offsets shift automatically, so you don't have to remember who's on summer time.
Can I convert to several zones at once?
That's the point of the 'Add another zone' button. Line up New York, London, and Tokyo side by side and you can spot the one window where nobody's asleep before you send the invite.
Why does the result show the day of the week?
Because a late meeting in one place is the next morning somewhere else. Showing the weekday and date next to the time stops you from booking a Tuesday call that's actually Wednesday for half the room.
Which time zones are included?
A curated set of major hubs across the Americas, Europe, Asia, the Middle East, and the Pacific — the ones most people actually need. Each uses a standard IANA zone name like America/New_York or Asia/Tokyo under the hood.
Does it default to the current time?
It fills in your local date and time when the page loads, so you can convert 'right now' with one glance. Change either field and everything recalculates instantly.
Is this good for scheduling recurring calls?
For a one-off, absolutely. For a standing weekly call, double-check around daylight saving changeovers — the US, Europe, and Australia switch on different weekends, so a fixed local time can drift by an hour for a few weeks.