Best overlap: 4:00 PM to 6:00 PM in Manila is 8:00 AM to 10:00 AM in Edinburgh.
4:00 PM to 6:00 PM in Manila is when Edinburgh is also working, at 8:00 AM to 10:00 AM their time. The overlap is tight at roughly 2 hours, so protect it: 4:00 PM in Manila / 8:00 AM in Edinburgh is your safest recurring slot. Watch the DST gap — when Edinburgh changes its clocks and Manila stays the same, this window slides by an hour.
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. -
8 AM Tokyo is 4 PM in Los Angeles the day before. West Coast afternoon windows, the East Coast dead zone, and why the Philippines slot is an hour off. -
London to New York is five hours apart, except for the five weeks a year when it isn't. Exact overlap windows for every US zone, the 2026 DST mismatch dates, and where to put the recurring sync. -