Timezone Converter for Distributed Teams: Schedule Meetings Without the Math

TL;DR — The Timezone Converter shows side-by-side time across any cities, with a draggable slider to find the overlap window. Pair with the Date Calculator for "how many business days away."

Why time zones break distributed teams

If your team is spread across SF, Berlin, Bangalore, and Tokyo, you have at most a 1-hour overlap where everyone is in working hours. Daylight Saving Time changes that gap by an hour for a few weeks each spring and fall — and not on the same dates. The result: a calendar full of misaligned invites, missed meetings, and the eternal "is that EST or EDT?" thread.

The IANA name vs the abbreviation

IANA (always use this)	Common abbreviation	UTC offset
America/Los_Angeles	PT (PST/PDT)	−8 / −7
America/New_York	ET (EST/EDT)	−5 / −4
Europe/London	GMT / BST	0 / +1
Europe/Berlin	CET / CEST	+1 / +2
Asia/Kolkata	IST	+5:30
Asia/Tokyo	JST	+9

Abbreviations are ambiguous (IST = India Standard Time or Israel Standard Time?). IANA names are unambiguous and DST-aware. Stick to IANA in code, configs, and calendar invites.

Find a meeting time in 30 seconds

1. Open the Timezone Converter.
2. Add every participant’s city — autocomplete handles IANA matching.
3. Drag the slider. The overlap window in normal working hours (9–17) is highlighted across all rows.
4. Copy the time in each participant’s zone into your calendar invite — or share the URL, which encodes the meeting time for everyone.

The rules that save remote teams

• Always use IANA zones in calendar invites. "Tuesday 10 AM" without a zone is a coin flip; "Tuesday 10:00 America/New_York" is unambiguous.
• Schedule from the most-east-and-west pair. SF (UTC−8) and Tokyo (UTC+9) is the killer combo — try 16:00 Tokyo / 08:00 SF (with DST awareness).
• Avoid the DST transition weeks for new recurring meetings. They drift in different countries; lock the first instance with IANA + day-of-week.
• Rotate the painful meeting. If one region always takes the bad slot (late evening or early morning), rotate it monthly so nobody burns out.
• For servers and logs, always UTC. Convert at display time, never in storage.

The Daylight Saving trap

The US and EU shift DST on different dates — the gap between London and New York is "usually 5 hours" but is briefly 4 hours in mid-March and again in late October/early November. The Timezone Converter handles this automatically as long as you’re entering future dates rather than abstract "10 AM PT".

FAQ

What’s the best meeting time for global teams?

For Americas–Europe overlap: 14:00–16:00 UTC. For Europe–India: 13:00–16:00 UTC. For a true global call (Americas + EMEA + APAC), you almost always have to inconvenience one region — rotate it.

Why does the time gap between cities change?

Daylight Saving Time. The US, Europe, and Australia all start/end DST on different dates, so the gap shifts during transitions.

Why does IST sometimes mean India and sometimes Israel?

Because abbreviations aren’t standardized. Use IANA names (Asia/Kolkata vs Asia/Jerusalem) in any context where ambiguity matters.

How do I share a meeting time across zones?

The converter generates a shareable URL that encodes the time — recipients see it in their local zone automatically.

Remote-team toolkit

• Timezone Converter — multi-city slider.
• Date Calculator — business-day math.