The Long Goodbye Get the app
Free tool · time-zone overlap for couples

Find your best time to call, across any two time zones

Pick where each of you is and when you are awake and at work. You get the hours you share, the two or three best call windows in plain words, and a week grid you can print and stick on the fridge. Daylight saving is handled for the week you pick.

Works in your browser. Nothing you pick here is sent anywhere.

London is 5 hours ahead of New York that week. On a weekday you are both awake for 11 hours, and 1 hour of those are outside work for both of you.

Worked out for the week of 11 January 2027 (11 Jan – 17 Jan), in New York time, with each zone’s own daylight-saving rules for those dates. London awake 7 am – 11 pm, working 9 am – 5 pm weekdays; New York awake 7 am – 11 pm, working 9 am – 5 pm weekdays.

A weekday, in New York timeboth awake
New Yorkawake 7 am – 11 pm
Londonawake 7 am – 6 pm and 2 – 7 am New York time
7a10a1p4p7p10p1a4a7a
Best on a weekday
noon – 2 pm New York
5 – 7 pm London · New York lunchtime, London early evening · during New York’s lunch break
Another weekday option
7 – 9 am New York
noon – 2 pm London · New York morning, London lunchtime · during London’s lunch break
The long weekend call
Sat 1 – 4 pm New York
Sat 6 – 9 pm London · New York lunchtime, London early evening
The week · New York time, 11 Jan – 17 Jan
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
Mon
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a
2a
3a
Tue
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a
2a
3a
Wed
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a
2a
3a
Thu
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a
2a
3a
Fri
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a
2a
3a
Sat
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a
2a
3a
Sun
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a
2a
3a

Columns are New York hours; the small figure in each cell is the time in London. both free both awake, one at work London asleep

How the finder decides

Each day starts at your wake-up time and is split into half hours. A half hour counts as shared when both of you are inside your awake hours, and as free when neither of you is inside your work hours on your own weekday, so a Friday evening for you that is Saturday morning for them counts as free on their side.

The best windows weigh comfort, not just overlap: a free evening beats an early morning, and a lunch break beats the middle of a work block. The weekend window looks at your Saturday. Work hours are a guess at a typical week; change them to fit shifts, school or a deployment.

Stop doing the math every day

The Long Goodbye keeps your person’s local time and time of day on your home-screen widget and lock screen, so you can see whether it is morning coffee or midnight for them before you call. A “thinking of you” tap lights up their widget, and a countdown keeps the next visit in view.

Download on the App Store Get it on Google Play

City pairs

Pages with the gap through 2027, the clock-change dates and a conversion table, worked out ahead of time for pairs long-distance couples look up most.

UK and Europe

London to New YorkLondon to ChicagoLondon to Los AngelesLondon to TorontoLondon to DallasLondon to HoustonLondon to SeattleLondon to San FranciscoLondon to BostonLondon to AtlantaLondon to MiamiLondon to DenverLondon to VancouverManchester to New YorkManchester to ChicagoEdinburgh to New YorkDublin to New YorkDublin to BostonDublin to ChicagoParis to New YorkParis to Los AngelesParis to ChicagoParis to MontrealBerlin to New YorkBerlin to ChicagoBerlin to Los AngelesBerlin to TorontoAmsterdam to New YorkAmsterdam to ChicagoAmsterdam to Los AngelesMadrid to New YorkMadrid to MiamiMadrid to Los AngelesBarcelona to New YorkBarcelona to Los AngelesLisbon to New YorkLisbon to MinneapolisLisbon to BostonLisbon to TorontoRome to New YorkRome to ChicagoMilan to New YorkStockholm to New YorkOslo to New YorkCopenhagen to New YorkWarsaw to ChicagoAthens to New YorkIstanbul to New YorkZurich to New York

Philippines

Manila to New YorkManila to Los AngelesManila to ChicagoManila to HoustonManila to San FranciscoManila to SeattleManila to TorontoManila to VancouverManila to DallasManila to Las VegasManila to San DiegoManila to LondonManila to SydneyManila to DubaiCebu to Los AngelesCebu to New York

India

Mumbai to New YorkMumbai to San FranciscoMumbai to TorontoMumbai to LondonDelhi to New YorkDelhi to TorontoDelhi to LondonDelhi to ChicagoBangalore to San FranciscoBangalore to SeattleBangalore to New York

Japan

Tokyo to New YorkTokyo to Los AngelesTokyo to ChicagoTokyo to San FranciscoTokyo to SeattleTokyo to TorontoTokyo to LondonTokyo to HonoluluOsaka to Los AngelesOsaka to New York

Korea

Seoul to New YorkSeoul to Los AngelesSeoul to ChicagoSeoul to TorontoSeoul to SeattleSeoul to DallasSeoul to LondonBusan to Los Angeles

Australia and New Zealand

Sydney to New YorkSydney to Los AngelesSydney to LondonSydney to ChicagoSydney to TorontoSydney to San FranciscoMelbourne to LondonMelbourne to New YorkMelbourne to Los AngelesBrisbane to LondonBrisbane to Los AngelesPerth to LondonPerth to New YorkAuckland to LondonAuckland to Los AngelesAuckland to New York

Brazil and Mexico

São Paulo to New YorkSão Paulo to MiamiSão Paulo to LisbonSão Paulo to LondonRio de Janeiro to New YorkRio de Janeiro to MiamiMexico City to Los AngelesMexico City to ChicagoMexico City to HoustonMexico City to New YorkMexico City to DallasMexico City to MadridGuadalajara to Los AngelesGuadalajara to ChicagoMonterrey to HoustonMonterrey to Dallas

Military and deployment

Ramstein to New YorkRamstein to ChicagoRamstein to DallasRamstein to San AntonioRamstein to Fayetteville, NCStuttgart to Fayetteville, NCStuttgart to Washington, DCGrafenwöhr to Killeen, TXGrafenwöhr to Fayetteville, NCGrafenwöhr to Clarksville, TNVicenza to Fayetteville, NCVicenza to Clarksville, TNRota to Norfolk, VARota to Jacksonville, FLOkinawa to Los AngelesOkinawa to San DiegoOkinawa to Jacksonville, NCOkinawa to ChicagoOkinawa to HonoluluYokosuka to San DiegoYokosuka to Norfolk, VAPyeongtaek to Killeen, TXPyeongtaek to Fayetteville, NCPyeongtaek to Clarksville, TNPyeongtaek to El PasoKuwait to Fayetteville, NCKuwait to Killeen, TXKuwait to Clarksville, TNKuwait to Colorado SpringsBahrain to Norfolk, VABahrain to San DiegoBahrain to Jacksonville, FLQatar to TampaQatar to New YorkDjibouti to Norfolk, VADjibouti to Fayetteville, NCGuam to Los AngelesGuam to San DiegoGuam to Honolulu

Across North America

Los Angeles to New YorkLos Angeles to ChicagoLos Angeles to TorontoHonolulu to New YorkHonolulu to ChicagoVancouver to TorontoCalgary to Toronto

More pairs

Dubai to LondonDubai to New YorkDubai to TorontoSingapore to LondonSingapore to New YorkSingapore to San FranciscoHong Kong to LondonHong Kong to New YorkHong Kong to VancouverBangkok to LondonBangkok to Los AngelesHo Chi Minh City to Los AngelesHo Chi Minh City to HoustonJohannesburg to LondonLagos to LondonLagos to HoustonBogotá to MiamiBogotá to New YorkBuenos Aires to Miami

Questions

How do I find the best time to call someone in another time zone?

List the hours each of you is awake, take out the hours either of you is at work, and see what is left in both clocks at once. The finder on this page does exactly that for any two cities or IANA time zones and picks the two best weekday hours and the best weekend stretch.

Does the overlap finder handle daylight saving time?

Yes. Every conversion uses your browser's time-zone database for the dates of the week you pick, so a week that crosses a clock change is drawn with the change in it. Pick a week in March or late October to see the weeks when Europe and North America are briefly an hour closer than usual.

What counts as free in the week grid?

A bright cell is an hour when both of you are awake and neither is inside the work hours you picked, on that person's own weekday. A pale cell means you are both awake but one of you is probably at work. Grey means the other person is asleep.

Is anything I type sent to a server?

No. The finder runs entirely in your browser. The cities and hours you choose are not sent or stored.

What if we have no overlap at all?

With typical hours most pairs share at least a few waking hours, even twelve hours apart: one person's early morning meets the other's late evening. If the finder shows none, move one bedtime or wake-up time by an hour or two and the window usually opens.

More free tools and guides

Deployment countdownVisa-wait countdownThe best time to call long distanceTime zones in a long-distance relationship