Time Zone Converter

Hour by hour

Green rows are the hours when both cities are inside an ordinary 9-to-5 working day.

Popular conversions

Each of these has its own page with the year’s clock changes, the overlap between office hours and a few notes on what tends to work.

United States and Europe

• 🇺🇸🇬🇧New York to LondonEDT → BST
• 🇺🇸🇫🇷New York to ParisEDT → CEST
• 🇺🇸🇩🇪New York to BerlinEDT → CEST
• 🇺🇸🇬🇧Los Angeles to LondonPDT → BST
• 🇺🇸🇬🇧Chicago to LondonCDT → BST
• 🇺🇸🇬🇧San Francisco to LondonPDT → BST

Within the United States

• 🇺🇸🇺🇸New York to Los AngelesEDT → PDT

United States and Asia

• 🇺🇸🇯🇵New York to TokyoEDT → JST
• 🇺🇸🇮🇳New York to MumbaiEDT → IST
• 🇺🇸🇸🇬New York to SingaporeEDT → SGT
• 🇺🇸🇵🇭New York to ManilaEDT → PHT
• 🇺🇸🇦🇪New York to DubaiEDT → GST
• 🇺🇸🇮🇳San Francisco to BangalorePDT → IST
• 🇺🇸🇯🇵Los Angeles to TokyoPDT → JST

United States and Australia

• 🇺🇸🇦🇺New York to SydneyEDT → AEDT
• 🇺🇸🇦🇺Los Angeles to SydneyPDT → AEDT

Europe, Asia and the Middle East

• 🇬🇧🇦🇪London to DubaiBST → GST
• 🇬🇧🇸🇬London to SingaporeBST → SGT
• 🇬🇧🇭🇰London to Hong KongBST → HKT
• 🇬🇧🇯🇵London to TokyoBST → JST
• 🇬🇧🇦🇺London to SydneyBST → AEDT

A word about EST, GMT and other abbreviations

Time zone abbreviations are a shorthand, and a slippery one. EST is strictly Eastern Standard Time, UTC−5, which New York only uses in winter; from March to November the city is on EDT, UTC−4. Plenty of people write “EST” all year round, which is how a meeting ends up an hour out.

Some abbreviations mean several things at once. CST can be Central Standard Time in the US or China Standard Time. IST is India, Ireland or Israel depending on who’s writing. BST is British Summer Time to a Londoner and Bangladesh Standard Time to someone in Dhaka.

That’s why this converter works with places, not labels. Behind each city is an entry in the IANA time zone database, the same source your phone and laptop use, which records every rule change for that place.

Common questions