Two examples
On 15 November 2026 a worker in Nairobi (UTC+3) with a New York employer on 09:00 to 17:00 sees that day as 17:00 to 01:00. If you can work 08:00 to 20:00, you share 3 hours.
On the same date a worker in Lagos (UTC+1) with a London employer on 09:00 to 17:00 sees it as 10:00 to 18:00. If you work 09:00 to 17:00, you share 7 hours.
Where the clocks come from
Your clock comes from our own table of 54 countries, not from your browser. A browser with old time zone data can be wrong: Morocco moved to UTC+0 on 20 September 2026, and an old browser will still say UTC+1.
Egypt changes its clock, so we work it out from the date: UTC+3 from the last Friday of April to the last Thursday of October, and UTC+2 the rest of the year. DR Congo has two zones, so pick yours. Your employer's clock comes from your browser's time zone data, which follows daylight saving in that city on the date you pick.
How to use the result
Paste the line into your application or build the whole email here. Stating your hours up front answers a question many employers have about hiring from abroad. Read more in our guide to working across time zones, then browse remote roles.
Questions people ask
What is the time difference between Kenya and New York?
On 15 November 2026 it's 8 hours, because New York is on UTC-5 and Kenya on UTC+3. In summer New York moves to UTC-4 and the gap is 7 hours.
Does the overlap change during the year?
Yes. Most African countries don't change their clocks, but Europe and the US do, so your overlap can move by an hour.
A free tool, not legal or tax advice. Reviewed on 2 November 2026.