There is no standard 8-to-6 overlap. Someone joins early or late.
There's no shared 9-to-5 between Philadelphia and Singapore; at 12 hours apart, one city's workday is the other's evening or night. Your best bet is one team taking an early-morning or late-evening call — alternating who stretches keeps it fair over time. Because Philadelphia and Singapore don't both observe daylight saving, plan to re-check the overlap around March and November.
| Local time | 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Philadelphia America/New York | ||||||||||||||||||||||||
Singapore Asia/Singapore |
An 8 AM Pacific launch is 5 PM in London and 1 AM in Sydney. Your blog post, your engineering on-call, your support team, and your Twitter schedule are all picking different hours. Here is how to plan a launch that does not embarrass you in any time zone. -
WorldTimeBuddy is a very good time converter. Timezoners is a shared overlap board for a team you meet with every week. An honest comparison of where each one wins. -
Long-distance relationships, parents working overseas, grandkids in Auckland and grandparents in London. The work guides do not really apply. Here is a practical playbook for keeping family relationships strong across time zones. -