Meeting overlap between APAC and the Americas
A 09:00–17:00 day in Tokyo and a 09:00–17:00 day in New York almost never coincide. The honest options are an early morning on one side, a late evening on the other, or asynchronous work.
How large the gap is
Tokyo is typically 13 or 14 hours ahead of New York. Singapore is 12 or 13 hours ahead. Sydney in Australian summer (northern winter) can be 16 hours ahead of New York. Those are not “a bit inconvenient.” They are inverted days.
Los Angeles is three hours behind New York, which makes the West Coast slightly kinder to Tokyo mornings: a 08:00 LA call is 00:00 or 01:00 in Seoul/Tokyo during US daylight saving — still a night shift, not a shared afternoon.
India sits in between. UTC+05:30 overlaps both a London morning and, painfully, a US East Coast early morning. Bangalore teams that serve US customers often keep an evening block on purpose; that is a staffing choice, not a natural overlap.
Slots that actually get used
Tokyo 08:00–09:00 against New York 19:00–20:00 (winter) is the textbook finance slot. Product teams copy it and then wonder why no one in California joined — California is still at work, but three hours earlier, so 16:00–17:00, which collides with school pickup more than Wall Street does.
Singapore evening against US morning is the BPO pattern. Manila and Los Angeles on this site’s curated pair exist because that night shift is a real industry, not a search-engine trick.
If the agenda is a decision, pick one side to be uncomfortable and say so. Alternating the pain week by week is fairer than pretending 09:00 “global” means 09:00 everywhere.
Use overlap tables, then convert the date
City pages include a “best time to call” table against other major zones. It assumes a 09:00–17:00 day, which is wrong for many APAC engineering cultures that run later — treat it as a floor, then adjust.
Australian DST flips the Sydney column in October. Recheck in both January and July before you lock a quarter of town halls.
When the pair is not curated, use the converter rather than hoping a difference URL exists. NowZones indexes only a small allowlist of pairs so the site does not become a thousand identical grids.
Try the tools
Frequently asked questions
- Is there any shared 09:00–17:00 window Tokyo–New York?
- No meaningful one. You can nibble 17:00 in Tokyo against 04:00 in New York, which is not a working overlap. Plan an edge-of-day call or go async.
- Does US DST make APAC easier?
- It moves the gap by an hour. It does not create a shared afternoon. Check the city pages in March and November.
- Where do I start for a specific pair?
- Open both city clocks, then a curated difference if we publish one (for example New York vs Tokyo). Otherwise convert 09:00 on a real date.