PHT to EST

The Philippines is one of the world's largest centers for call centers and business process outsourcing, and most of that work serves the United States. A 9:00 AM to 5:00 PM Eastern day runs from 10:00 PM to 6:00 AM in Manila in winter and 9:00 PM to 5:00 AM in summer. Agents commute at night, malls and restaurants near business districts like Makati, Bonifacio Global City and Ortigas stay open late, and the whole shift moves an hour when US clocks change.

That shift change trips up rosters twice a year. The Philippines does not use daylight saving, so on the second Sunday of March every US-anchored shift starts an hour earlier in Manila, and on the first Sunday of November it starts an hour later again.

The official abbreviation for Philippine Standard Time is PST, written PhST to avoid confusion, and Filipinos often say "PST" meaning their own clock. To an American, PST means Pacific Standard Time, 16 hours behind Manila in winter. Write "Manila time" or "UTC+8" in any message that crosses the Pacific.

More than four million Americans have Filipino roots, and many call family in the Philippines on weekends. Saturday 8:00 PM in New York is Sunday 9:00 AM in Manila in winter and 8:00 AM in summer, a good slot before church or Sunday lunch. Long holidays matter too: Filipino Christmas season famously starts in September. For California, see Manila to Pacific time.