Time zone overlap calculator

Bogotá is on UTC-5 all year, with no daylight saving. A New York 9-to-5 is 9am–5pm there in January and 8am–4pm in July, when New York is on daylight saving time. A London 9-to-5 is 4am–12pm there in January.

Mexico City is on UTC-6 all year, with no daylight saving. A New York 9-to-5 is 8am–4pm there in January and 7am–3pm in July, when New York is on daylight saving time. A London 9-to-5 is 3am–11am there in January.

Nairobi is on UTC+3 all year, with no daylight saving. A New York 9-to-5 is 5pm–1am there in January and 4pm–12am in July, when New York is on daylight saving time. A London 9-to-5 is 12pm–8pm there in January.

Lagos is on UTC+1 all year, with no daylight saving. A New York 9-to-5 is 3pm–11pm there in January and 2pm–10pm in July, when New York is on daylight saving time. A London 9-to-5 is 10am–6pm there in January.

Johannesburg is on UTC+2 all year, with no daylight saving. A New York 9-to-5 is 4pm–12am there in January and 3pm–11pm in July, when New York is on daylight saving time. A London 9-to-5 is 11am–7pm there in January.

Mumbai is on UTC+5:30 all year, with no daylight saving. A New York 9-to-5 is 7:30pm–3:30am there in January and 6:30pm–2:30am in July, when New York is on daylight saving time. A London 9-to-5 is 2:30pm–10:30pm there in January.

Yes. Every offset comes from the IANA time zone database for the date you pick, so the overlap changes when the US, UK or Australia move their clocks and the other place doesn't.

Then one side shifts its hours. For a US 9-to-5, a hire in Manila would work a night shift, and you can set their hours that way in the calculator to check it. Every StaffPick profile shows which business hours the person covers.

No. It runs in your browser. The places you pick are kept only in the page address, so you can share the link.