Timezone overlap

Timezone maths is simple; what trips people is forgetting which side of midnight their hours fall on in the other city. The finder computes overlaps per the cities' actual offsets (including daylight saving where it applies) and reports the window in both local times. There are no tricks here — the point of the tool is to refuse to sugar-coat a 7-hour gap.

Worked example: Prague (CET, winter UTC+1) to Singapore (SGT, UTC+8) is a 7-hour span — a 10:00 standup in Singapore lands at 03:00 in Prague, and the only real overlap is a late-afternoon window in Europe versus early-evening in Singapore. Read that honestly before you sign the offer, not after the third 3 a.m. call.

Does the finder handle daylight saving?

Yes — it computes the offset for the date you select, so the honest answer changes between January and July for cities that shift. Re-check the overlap at the actual times of year you will work it.

What counts as a workable overlap?

For fully async teams, 2 overlapping hours is enough. For daily standups, look for 3–4. The finder lets you move your working hours and see instantly what shifting your day by one hour buys you — which is often more than people expect.

I work US East hours from Asia — what should I look for?

You are asking to compress the planet, and the finder will show you exactly how much. Practical pattern: cities like Bangkok or Ho Chi Minh City give you evenings that overlap US East mornings — workable for async, brutal for standups.