Free online time zone converter. Convert times across all US time zones (ET, CT, MT, PT, AKT, HST) and major world cities — instant results for meetings, travel, and remote work.
All US zones • 40+ world cities
Schedule calls across US time zones instantly — never confuse ET vs PT again for team meetings.
Know what time it is at your destination before you land. Convert departure and arrival times.
Find overlapping business hours with clients in London, Tokyo, or Sydney for scheduling.
The United States spans 6 time zones (9 if you count territories). Eastern Time (ET) covers the most populous states including New York, Florida, and the Northeast. Central Time (CT) covers Chicago, Texas, and the Midwest. Mountain Time (MT) covers Denver and most of the Rocky Mountain states. Pacific Time (PT) covers Los Angeles, Seattle, and the West Coast. Alaska Time (AKT) is 1 hour behind PT. Hawaii-Aleutian Standard Time (HST) is 2 hours behind PT and does not observe Daylight Saving Time.
The US observes Daylight Saving Time (DST) from the second Sunday in March to the first Sunday in November. During DST, clocks spring forward 1 hour. Arizona (except Navajo Nation), Hawaii, and US territories do not observe DST. The ET/PT gap is 3 hours standard time and 3 hours during DST. A 9 AM ET conference call = 6 AM PT — something that frustrates West Coast employees regularly.
ET: UTC−5 (UTC−4 DST). CT: UTC−6 (UTC−5 DST). MT: UTC−7 (UTC−6 DST). PT: UTC−8 (UTC−7 DST). AKT: UTC−9 (UTC−8 DST). HST: UTC−10 (no DST). Puerto Rico: UTC−4 (no DST).
NY to London: +5h (ST) / +4h (DST). NY to Paris: +6h (ST) / +6h (DST). NY to Tokyo: +14h (ST). NY to Sydney: +15–16h. LA to London: +8h. LA to Tokyo: +17h.
Spring forward: 2nd Sunday in March at 2:00 AM (→ 3:00 AM). Fall back: 1st Sunday in November at 2:00 AM (→ 1:00 AM). 2026 dates: March 8 and November 1. Exceptions: AZ, HI, and US territories.
ET 9AM–5PM = PT 6AM–2PM. Best overlap: 12PM–2PM ET (9–11AM PT). NY–London: 9AM–1PM ET overlaps 2–6PM GMT. LA–Tokyo: almost no overlap in business hours (17h gap).