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Elevation & time

Time difference calculator

Add two or more places to see the time in each one, the difference between them, now or on the date you pick, and the hours when everyone’s workday overlaps.

  • New York
    --:--   America/New_York · Reference
  • Los Angeles
    --:--   America/Los_Angeles ·  
  • London
    --:--   Europe/London ·  

Meeting planner

The 24 hours of the chosen day in the first place, next to the time in the others. Tap an hour in the first column to see the conversion.

That day, no hour falls within everyone’s working hours. Try another day or other hours.

New YorkLos AngelesLondon

working hours (Monday to Friday) night (10 p.m. to 7 a.m.) good for everyone

How to use it

  1. Add places

    Search for cities or towns by name, or pick a time zone from the list. The first place is the reference; use the arrow to swap in another one.

  2. Pick a date

    The difference can change with daylight saving time. Choose the day of your call or trip to see that day’s difference.

  3. Find the hour

    The planner lays out the 24 hours in columns, with working hours in green. Tap an hour to see the time everywhere else, and share the link.

Why the US–Europe difference changes in March and in the fall

The US and Europe change their clocks on different dates. The US springs forward on the second Sunday in March and falls back on the first Sunday in November; the European Union and the UK, on the last Sundays in March and October. For a few weeks one side has changed and the other hasn’t, so the gap shrinks by an hour.

In 2026, New York changes its clocks on March 8 and November 1 and London on March 29 and October 25. That’s why they’re 5 h apart for most of the year and 4 h apart during those weeks:

Time difference between New York and London in 2026 (London is ahead)
FromToDifference
January 1March 75 h
March 8March 284 h
March 29October 245 h
October 25October 314 h
November 1December 315 h

Most of Canada, and Cuba, change on the same dates as the US. Most of Mexico stopped changing its clocks in 2022, except for some border towns that follow the US calendar.

Time difference from New York

Hours ahead of (+) or behind (−) New York in winter (January) and summer (July), worked out with the IANA time zone database.

Difference from New York in 2026
PlaceIANA zoneIn JanuaryIn July
ChicagoAmerica/Chicago−1 h−1 h
DenverAmerica/Denver−2 h−2 h
PhoenixAmerica/Phoenix−2 h−3 h
Los AngelesAmerica/Los_Angeles−3 h−3 h
AnchorageAmerica/Anchorage−4 h−4 h
HonoluluPacific/Honolulu−5 h−6 h
San Juan, Puerto RicoAmerica/Puerto_Rico+1 h0 h
Mexico CityAmerica/Mexico_City−1 h−2 h
São PauloAmerica/Sao_Paulo+2 h+1 h
LondonEurope/London+5 h+5 h
ParisEurope/Paris+6 h+6 h
MadridEurope/Madrid+6 h+6 h
DubaiAsia/Dubai+9 h+8 h
New DelhiAsia/Kolkata+10 h 30 min+9 h 30 min
BeijingAsia/Shanghai+13 h+12 h
TokyoAsia/Tokyo+14 h+13 h
SydneyAustralia/Sydney+16 h+14 h

Phoenix and Honolulu never change their clocks, so their gap with New York grows by an hour in summer. In the Southern Hemisphere, summer runs from December to March.

How it works

Each place’s time comes from its time zone. If you search for it by name, the zone is found with the timezone-boundary-builder boundaries (based on OpenStreetMap), just like in the time zone finder; if you pick a zone from the list, it’s used as is.

Your browser works out the difference, the clock-change dates and the planner hours with the IANA time zone database, which also handles 23- and 25-hour days: on a changeover day, the planner skips or repeats an hour.

Frequently asked questions

What’s the time difference between New York and London?

5 h for most of the year, with London ahead. For a few weeks in March and around the end of October, it’s 4 h, because the US and the UK change their clocks on different days.

What’s the difference between Eastern and Pacific time?

Three hours all year: when it’s noon in New York, it’s 9 a.m. in Los Angeles. Both change their clocks on the same days.

What working hours does the planner use?

9 a.m. to 5 p.m., Monday to Friday, in each place’s local time. You can change the hours; weekends never count as working days.

How do I share a comparison?

Use the Share button: the link keeps the places, in order, and the date if it isn’t today. Whoever opens it sees the times for their own moment.

Related tools

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What is my elevation? See your current elevation above sea level, read from terrain data instead of your phone’s GPS. Elevation finder Click anywhere on the map or search for a place to get its elevation above sea level. Elevation profile Draw a line on the map and get its elevation profile, with the total climb and descent. GPX route profile Upload a GPX from Strava, Garmin or Wikiloc to see its climb, slopes by section and an estimated time.

Sources