Time-zone overlap calculator

Pick your office city and see how a 9:00–17:00 day in your city lands in Tbilisi, Yerevan, Kyiv and Almaty, and how many hours you share with a normal 9:00–18:00 local day there.

All cities at a glance (January)

Shared hours between your 9–17 and their 9–18.
Your office	Tbilisi	Yerevan	Kyiv	Almaty
New York	0 h	0 h	2 h	0 h
Chicago	0 h	0 h	1 h	0 h
Denver	0 h	0 h	0 h	0 h
Phoenix	0 h	0 h	0 h	0 h
Los Angeles	0 h	0 h	0 h	0 h
Toronto	0 h	0 h	2 h	0 h
London	5 h	5 h	7 h	4 h
Dublin	5 h	5 h	7 h	4 h
Lisbon	5 h	5 h	7 h	4 h
Paris	6 h	6 h	8 h	5 h
Berlin	6 h	6 h	8 h	5 h
Amsterdam	6 h	6 h	8 h	5 h
Madrid	6 h	6 h	8 h	5 h
Warsaw	6 h	6 h	8 h	5 h
Stockholm	6 h	6 h	8 h	5 h
Helsinki	7 h	7 h	8 h	6 h
Dubai	8 h	8 h	6 h	8 h
Singapore	4 h	4 h	2 h	5 h
Sydney	1 h	1 h	0 h	2 h

Tbilisi and Yerevan stay on UTC+4 all year and Almaty on UTC+5; Kyiv moves between UTC+2 and UTC+3 with daylight saving time^[1]^[2]^[3]^[4]. For US offices the shared window is small, so most US roles are covered with an afternoon-to-night local shift; we agree the hours with each candidate before the interview.

Questions

Which country has the best overlap with New York?

None of the four overlaps a normal local day with New York in winter; Kyiv is closest, and candidates who agree to a later shift cover the US morning.

Which country has the best overlap with Berlin?

Kyiv shares almost the whole day with Berlin; Tbilisi and Yerevan share about 6 hours.

Sources

timeanddate.com: Tbilisi time zone: https://www.timeanddate.com/time/zone/georgia/tbilisi
timeanddate.com: Yerevan time zone: https://www.timeanddate.com/time/zone/armenia/yerevan
timeanddate.com: Kyiv time zone: https://www.timeanddate.com/time/zone/ukraine/kyiv
timeanddate.com: Almaty time zone: https://www.timeanddate.com/time/zone/kazakstan/almaty

How these pages are built: methodology and data sources. Data checked 2026-10-16.