What is Time zone overlap?

Time zone overlap

Time zone overlap is the number of hours during which two people in different zones share working time. International remote job posts usually require a minimum, typically two to four hours, and that requirement effectively decides which countries can apply for a given role.

It is the silent filter on international applications. A post requiring four hours of overlap with the US west coast rules out half of Europe without saying so. Reading that requirement properly, and knowing how to negotiate it or offset it with an async working plan, completely changes the map of roles open to you.

Also called: overlap hours, shared hours, core hours

Related terms

Asynchronous workAsynchronous work is a way of coordinating teams in which replies are not expected in real time. Each person advances within their own hours using written documentation, recorded decisions and clear deadlines instead of simultaneous meetings. It is what lets a team operate across incompatible time zones.
Distributed onboardingDistributed onboarding is the process of joining a remote team, where nobody learns by osmosis or by asking the person at the next desk. It relies on entry documentation, explicit goals for the first ninety days and a named person to bring questions to.