What is TimezoneCast?

TimezoneCast is a free, visual time zone converter and world clock. It lets you compare multiple cities side-by-side, drag an interactive cursor to find overlapping working hours, and export calendar invites — all without signing up.

How do I find the best meeting time across time zones?

Add each attendee's city using the Add city button, then drag the time cursor. The working-hours band highlights 9 AM–6 PM for each city. Look for where all bands overlap — that's your meeting window.

Can I share a time zone comparison with someone?

Yes. Click the Share button and copy the URL. It encodes your entire setup — cities, selected time, and date — into the link. Anyone who opens it sees exactly what you configured. No account required.

What cities and time zones does TimezoneCast support?

TimezoneCast supports hundreds of cities worldwide using the IANA timezone database. You can also add any fixed UTC offset from UTC−12 to UTC+14 for locations not tied to a named city.

How do I export a calendar invite?

Click the Event button, name your meeting, then click ICS to download a .ics calendar file. It opens in Google Calendar, Outlook, Apple Calendar, and any other app that supports the .ics format.

Is TimezoneCast free to use?

Yes, completely free. No ads, no sign-up, no usage limits. TimezoneCast is built for people who work across time zones.

What is the time difference between London and New York?

New York is 5 hours behind London. This offset may shift by one hour when either city transitions in or out of Daylight Saving Time.

What is a good meeting time between London and New York?

The best window is 2pm–6pm London time, which is 9am–1pm in New York. Both cities are within standard working hours during this range.

When does London switch to and from Daylight Saving Time?

London (GMT) observes Daylight Saving Time. In the United States and Europe, clocks typically spring forward in March and fall back in November (US) or October (Europe). Check the DST badge above for the exact next transition date.

How do I convert GMT to EST manually?

To convert GMT to EST, subtract 5 hours to the GMT time. For example, 9:00 AM GMT = 4:00 AM EST. (Note: the exact offset is -5h and may vary with DST.)

GMT to EST Converter

New York is currently 5 hours behind London.

Current Time

London

02:34

Tue, Apr 28 · GMT+1

New York

21:34

Mon, Apr 27 · EDT

Daylight Saving Time Status

London

London is currently observing GMT+1 (summer time). Returns to standard time on October 26, 2026.

New York

New York is currently observing EDT (summer time). Returns to standard time on November 2, 2026.

Best Meeting Times

London Time	New York Time	Meeting Suitability
00:00	19:00-1d	—
01:00	20:00-1d	—
02:00	21:00-1d	—
03:00	22:00-1d	—
04:00	23:00-1d	—
05:00	00:00	—
06:00	01:00	—
07:00	02:00	—
08:00	03:00	—
09:00	04:00	—
10:00	05:00	—
11:00	06:00	—
12:00	07:00	—
13:00	08:00	⚠️ Edge
14:00	09:00	✅ Good
15:00	10:00	✅ Good
16:00	11:00	✅ Good
17:00	12:00	✅ Good
18:00	13:00	⚠️ Edge
19:00	14:00	—
20:00	15:00	—
21:00	16:00	—
22:00	17:00	—
23:00	18:00	—

🟢 Both cities within 9 AM–6 PM ⚠️ One city on edge of working hours

About This Time Zone Pair

London (GMT+1) is 5 hours behind New York (EDT). When it's 9:00 AM in London, it's 4:00 AM in New York.

London and New York observe Daylight Saving Time, which means the offset between the two cities may shift by one hour during DST transitions — particularly if the two regions change their clocks on different dates.

The best window for live meetings between London and New York is 2pm–6pm GMT+1 — that's 9am–1pm EDT for New York. Outside this window, async communication or recorded video is more practical.

For one-off conversions, use the converter above. For recurring meetings, export an .ics calendar invite — attendees see the time in their local zone automatically.

Frequently Asked Questions

What is the time difference between London and New York?: New York is 5 hours behind London. This offset may shift by one hour when either city transitions in or out of Daylight Saving Time.
What is a good meeting time between London and New York?: The best window is 2pm–6pm London time, which is 9am–1pm in New York. Both cities are within standard working hours during this range.
When does London switch to and from Daylight Saving Time?: London (GMT) observes Daylight Saving Time. In the United States and Europe, clocks typically spring forward in March and fall back in November (US) or October (Europe). Check the DST badge above for the exact next transition date.
How do I convert GMT to EST manually?: To convert GMT to EST, subtract 5 hours to the GMT time. For example, 9:00 AM GMT = 4:00 AM EST. (Note: the exact offset is -5h and may vary with DST.)