Time Zone Converter
This time zone converter shows what a time in one city is in another, such as 9:00 AM in New York in London or Tokyo. It applies daylight saving time for the date you choose and tells you when the time falls on the next or previous day.
Result
1:00 PM in London
| Date in London | Wednesday, October 28, 2026 |
|---|---|
| 24-hour time | 13:00 |
| London vs New York | +4 hours |
| Time zones | EDT → GMT |
Daylight saving time is applied for the date you choose.
How Time Zone Conversion Works
Every time zone is an offset from Coordinated Universal Time (UTC). Converting a time takes two steps:
- Find the moment in UTC: local time − the first zone’s offset
- Show that moment in the second zone: UTC + the second zone’s offset
Offsets change with daylight saving time, so the converter looks up each zone’s offset for the exact date you pick.
Worked Examples
9:00 AM in New York to London on October 28, 2026:
- New York is on EDT, UTC−4, so 9:00 AM is 13:00 UTC
- Europe changed its clocks back on October 25, so London is on GMT, UTC+0
- 13:00 UTC is 1:00 PM in London, a 4-hour difference
After the US changes its clocks on November 1, New York is on EST, UTC−5, and the usual 5-hour gap returns: 9:00 AM in New York is 2:00 PM in London.
5:00 PM in Los Angeles to Tokyo on July 1, 2026: Los Angeles is UTC−7 and Tokyo UTC+9, a 16-hour difference, so it’s 9:00 AM on July 2 in Tokyo.
Time Differences From New York
| City | In summer (EDT) | In winter (EST) |
|---|---|---|
| Los Angeles | 3 hours behind | 3 hours behind |
| Chicago | 1 hour behind | 1 hour behind |
| London | 5 hours ahead | 5 hours ahead |
| Paris, Berlin | 6 hours ahead | 6 hours ahead |
| India | 9 hours 30 minutes ahead | 10 hours 30 minutes ahead |
| Tokyo | 13 hours ahead | 14 hours ahead |
| Sydney | 14 hours ahead | 16 hours ahead |
Differences shift for a few weeks each spring and fall, when one place has changed its clocks and the other hasn’t yet.
Tips
Schedule with a city, not an abbreviation
“EST” in a meeting invite is often used year-round, even in summer when New York is actually on EDT. Choosing a city lets the converter apply the right rule.
Check the date as well as the time
Large differences push the time into the next or previous day. The result says when that happens.
Counting down to the event
To see how many days are left until a date, use the days until calculator.
Frequently Asked Questions
What time is it in London when it's 9 AM in New York?
Usually 2:00 PM, because London is 5 hours ahead of New York. For a short time each spring and fall the gap is 4 hours, because the US and Europe change their clocks on different dates. On October 28, 2026, for example, 9:00 AM in New York is 1:00 PM in London.
When does daylight saving time start and end in the US?
According to NIST, US daylight saving time begins at 2:00 a.m. on the second Sunday of March and ends at 2:00 a.m. on the first Sunday of November. In 2026 that's March 8 and November 1. Hawaii and most of Arizona don't change their clocks.
What is the difference between EST and EDT?
EST, Eastern Standard Time, is 5 hours behind UTC and is used in winter. EDT, Eastern Daylight Time, is 4 hours behind UTC and is used during daylight saving time. Picking a city rather than an abbreviation lets the converter choose the right one for the date.
What time is it in Tokyo when it's 5 PM in Los Angeles?
In summer, 9:00 AM the next day, because Tokyo is 16 hours ahead of Los Angeles during US daylight saving time. In winter the gap is 17 hours, so 5 PM in Los Angeles is 10 AM the next day in Tokyo. Japan doesn't use daylight saving time.
What is UTC?
Coordinated Universal Time, the world's reference time. Time zones are described as offsets from it, such as UTC−5 for New York in winter and UTC+9 for Tokyo. UTC itself never changes for daylight saving time.
What happens to a time that's skipped when the clocks go forward?
On the night the clocks spring forward, an hour doesn't exist. In New York on March 8, 2026, clocks jump from 2:00 to 3:00 a.m., so 2:30 a.m. never happens. The converter reads it as 3:30 a.m., the same moment a clock would show, and says so.
Related Calculators
- Days Until CalculatorHow many days until any date or holiday, counted from today.
- Hours Between Two Times CalculatorHours and minutes between two times, including overnight.
- Date Difference CalculatorDays, weeks, months and weekdays between two dates.
- Age CalculatorExact age in years, months and days, and days to the next birthday.
- Unit ConverterMetric and US units of length, weight, volume, area, speed and temperature.
Sources & Assumptions
- IANA Time Zone Database, the source of the time zone and daylight saving rules built into browsers and operating systems
- National Institute of Standards and Technology (NIST) — Daylight Saving Time (US rules; states and territories that don't observe it)
- Conversions use the time zone rules on your device. Zone abbreviations such as EDT come from your browser; some zones are shown as an offset like GMT+1.
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