🕒 World Clock & Time Difference

780 browser-local tools · page 1 of 13

World Clock & Time Difference. Every page here answers the same question about a different pair of places: whose clock is ahead, by how much, and what that does to a working day. For most pairs the answer is not one number, so each page carries the whole year as runs of dates. London and New York are five hours apart in January, four for the three weeks in March when America has moved its clocks and Europe has not, five again through the summer, four in the last week of October, and five from the first Sunday in November. Alongside those runs you get each place’s next clock-change date, the hours both sides are inside 09:00–17:00, and a converter for any date and time you type in.

780 tools on this shelf · page 1 of 13 · 60 listed below

🕒New York City ↔ London Time DifferenceThe clock difference between New York City and London on any date, with both change dates and the shared working hours. 🕒New York City ↔ Tokyo Time DifferenceThe clock difference between New York City and Tokyo on any date, with both change dates and the shared working hours. 🕒New York City ↔ Paris Time DifferenceThe clock difference between New York City and Paris on any date, with both change dates and the shared working hours. 🕒Tokyo ↔ London Time DifferenceThe clock difference between Tokyo and London on any date, with both change dates and the shared working hours. 🕒London ↔ Paris Time DifferenceThe clock difference between London and Paris on any date, with both change dates and the shared working hours. 🕒New York City ↔ Sydney Time DifferenceThe clock difference between New York City and Sydney on any date, with both change dates and the shared working hours. 🕒Tokyo ↔ Paris Time DifferenceThe clock difference between Tokyo and Paris on any date, with both change dates and the shared working hours. 🕒London ↔ Sydney Time DifferenceThe clock difference between London and Sydney on any date, with both change dates and the shared working hours. 🕒New York City ↔ Los Angeles Time DifferenceThe clock difference between New York City and Los Angeles on any date, with both change dates and the shared working hours. 🕒Tokyo ↔ Sydney Time DifferenceThe clock difference between Tokyo and Sydney on any date, with both change dates and the shared working hours. 🕒New York City ↔ Chicago Time DifferenceThe clock difference between New York City and Chicago on any date, with both change dates and the shared working hours. 🕒Los Angeles ↔ London Time DifferenceThe clock difference between Los Angeles and London on any date, with both change dates and the shared working hours. 🕒Paris ↔ Sydney Time DifferenceThe clock difference between Paris and Sydney on any date, with both change dates and the shared working hours. 🕒Los Angeles ↔ Tokyo Time DifferenceThe clock difference between Los Angeles and Tokyo on any date, with both change dates and the shared working hours. 🕒Chicago ↔ London Time DifferenceThe clock difference between Chicago and London on any date, with both change dates and the shared working hours. 🕒Los Angeles ↔ Paris Time DifferenceThe clock difference between Los Angeles and Paris on any date, with both change dates and the shared working hours. 🕒Chicago ↔ Tokyo Time DifferenceThe clock difference between Chicago and Tokyo on any date, with both change dates and the shared working hours. 🕒Chicago ↔ Paris Time DifferenceThe clock difference between Chicago and Paris on any date, with both change dates and the shared working hours. 🕒Los Angeles ↔ Sydney Time DifferenceThe clock difference between Los Angeles and Sydney on any date, with both change dates and the shared working hours. 🕒New York City ↔ New Delhi Time DifferenceThe clock difference between New York City and New Delhi on any date, with both change dates and the shared working hours. 🕒Chicago ↔ Sydney Time DifferenceThe clock difference between Chicago and Sydney on any date, with both change dates and the shared working hours. 🕒New Delhi ↔ London Time DifferenceThe clock difference between New Delhi and London on any date, with both change dates and the shared working hours. 🕒Los Angeles ↔ Chicago Time DifferenceThe clock difference between Los Angeles and Chicago on any date, with both change dates and the shared working hours. 🕒Tokyo ↔ New Delhi Time DifferenceThe clock difference between Tokyo and New Delhi on any date, with both change dates and the shared working hours. 🕒New York City ↔ Beijing Time DifferenceThe clock difference between New York City and Beijing on any date, with both change dates and the shared working hours. 🕒New Delhi ↔ Paris Time DifferenceThe clock difference between New Delhi and Paris on any date, with both change dates and the shared working hours. 🕒Beijing ↔ London Time DifferenceThe clock difference between Beijing and London on any date, with both change dates and the shared working hours. 🕒Cairo ↔ New York City Time DifferenceThe clock difference between Cairo and New York City on any date, with both change dates and the shared working hours. 🕒Tokyo ↔ Beijing Time DifferenceThe clock difference between Tokyo and Beijing on any date, with both change dates and the shared working hours. 🕒New Delhi ↔ Sydney Time DifferenceThe clock difference between New Delhi and Sydney on any date, with both change dates and the shared working hours. 🕒Cairo ↔ London Time DifferenceThe clock difference between Cairo and London on any date, with both change dates and the shared working hours. 🕒Lagos ↔ New York City Time DifferenceThe clock difference between Lagos and New York City on any date, with both change dates and the shared working hours. 🕒Beijing ↔ Paris Time DifferenceThe clock difference between Beijing and Paris on any date, with both change dates and the shared working hours. 🕒Cairo ↔ Tokyo Time DifferenceThe clock difference between Cairo and Tokyo on any date, with both change dates and the shared working hours. 🕒Lagos ↔ London Time DifferenceThe clock difference between Lagos and London on any date, with both change dates and the shared working hours. 🕒Los Angeles ↔ New Delhi Time DifferenceThe clock difference between Los Angeles and New Delhi on any date, with both change dates and the shared working hours. 🕒Cairo ↔ Paris Time DifferenceThe clock difference between Cairo and Paris on any date, with both change dates and the shared working hours. 🕒Lagos ↔ Tokyo Time DifferenceThe clock difference between Lagos and Tokyo on any date, with both change dates and the shared working hours. 🕒New York City ↔ Mexico City Time DifferenceThe clock difference between New York City and Mexico City on any date, with both change dates and the shared working hours. 🕒Chicago ↔ New Delhi Time DifferenceThe clock difference between Chicago and New Delhi on any date, with both change dates and the shared working hours. 🕒Beijing ↔ Sydney Time DifferenceThe clock difference between Beijing and Sydney on any date, with both change dates and the shared working hours. 🕒Lagos ↔ Paris Time DifferenceThe clock difference between Lagos and Paris on any date, with both change dates and the shared working hours. 🕒Mexico City ↔ London Time DifferenceThe clock difference between Mexico City and London on any date, with both change dates and the shared working hours. 🕒Cairo ↔ Sydney Time DifferenceThe clock difference between Cairo and Sydney on any date, with both change dates and the shared working hours. 🕒Los Angeles ↔ Beijing Time DifferenceThe clock difference between Los Angeles and Beijing on any date, with both change dates and the shared working hours. 🕒Mexico City ↔ Tokyo Time DifferenceThe clock difference between Mexico City and Tokyo on any date, with both change dates and the shared working hours. 🕒Lagos ↔ Sydney Time DifferenceThe clock difference between Lagos and Sydney on any date, with both change dates and the shared working hours. 🕒Chicago ↔ Beijing Time DifferenceThe clock difference between Chicago and Beijing on any date, with both change dates and the shared working hours. 🕒Mexico City ↔ Paris Time DifferenceThe clock difference between Mexico City and Paris on any date, with both change dates and the shared working hours. 🕒Cairo ↔ Los Angeles Time DifferenceThe clock difference between Cairo and Los Angeles on any date, with both change dates and the shared working hours. 🕒Cairo ↔ Chicago Time DifferenceThe clock difference between Cairo and Chicago on any date, with both change dates and the shared working hours. 🕒Lagos ↔ Los Angeles Time DifferenceThe clock difference between Lagos and Los Angeles on any date, with both change dates and the shared working hours. 🕒New York City ↔ Karachi Time DifferenceThe clock difference between New York City and Karachi on any date, with both change dates and the shared working hours. 🕒Mexico City ↔ Sydney Time DifferenceThe clock difference between Mexico City and Sydney on any date, with both change dates and the shared working hours. 🕒Lagos ↔ Chicago Time DifferenceThe clock difference between Lagos and Chicago on any date, with both change dates and the shared working hours. 🕒New York City ↔ Dhaka Time DifferenceThe clock difference between New York City and Dhaka on any date, with both change dates and the shared working hours. 🕒Karachi ↔ London Time DifferenceThe clock difference between Karachi and London on any date, with both change dates and the shared working hours. 🕒New York City ↔ Bangkok Time DifferenceThe clock difference between New York City and Bangkok on any date, with both change dates and the shared working hours. 🕒Los Angeles ↔ Mexico City Time DifferenceThe clock difference between Los Angeles and Mexico City on any date, with both change dates and the shared working hours. 🕒Tokyo ↔ Karachi Time DifferenceThe clock difference between Tokyo and Karachi on any date, with both change dates and the shared working hours.

How these tools work

The offsets are read out of the time-zone database already inside your browser — the same IANA table your operating system keeps current — at the instant you ask about, which is why half-hour and three-quarter-hour zones such as Kathmandu and Lord Howe come out exact instead of rounded to the nearest hour. Nothing is fetched and nothing you type leaves the device. One deliberate economy: the unit here is a pair of clock laws, not a pair of cities. Our 341 cities live under about forty different offset rules, so Cairo never gets a page beside Alexandria’s, and every city that shares a rule is named on the pages of that rule instead. But Lagos–Mexico City and Accra–Phoenix each keep their own page, because those two pairs agree about the size of the gap and disagree about what hour it is — merging them would answer the second query with the first pair’s clock readings, which is wrong in exactly the two rows a visitor came for. A device whose database predates the last rule change will print the old dates, which is the single caveat worth knowing, because governments do move these Sundays at short notice.

Part of Everyday Tools — 780 of 1916 tools sit here. Other shelves: City-to-city Distances, Coordinates & Position, Antipodes, World Clock & Time Difference, Numbers & Maths, Money, Rates & Shopping, Health, Body & Fitness, Date & Time, Developer & Data Tools, Text, Words & Writing, Study & Learning, Colour, Images & Files, Everyday Tools. Looking for something specific? Search the whole toolbox.