World Time Calculator
Convert between Korea time, US Eastern, US Pacific, UTC, and other major time zones.
Converted Time
Converted time
Sun, May 3, 2026, 20:30
Source time
Mon, May 4, 2026, 09:30
US market open (KST)
Mon, May 4, 2026, 22:30
US market close (KST)
Tue, May 5, 2026, 05:00
US Time and World Time Converter
The world time calculator converts dates and times across Korea, US time zones, UTC, Japan, and major European zones.
World Time Conversion Guide
Korea and US Time
Convert Korea time to US Eastern, Pacific, Central, and Mountain time zones with date changes shown clearly.
Daylight Saving Time
The calculation uses browser time-zone data for the selected date, so daylight saving time is reflected.
US Market Hours
For ETF investors, the page also converts the New York regular trading session to Korea time.
US Eastern and Pacific Time
Compare New York and Los Angeles time when planning calls, trading windows, or US-market events.
International Meeting Time
Use Korea, US, and Europe time zones together to find meeting times and date changes across regions.
ETF Trading Time Check
The page focuses on the regular US session in Korea time, which is often the first check for ETF investors.
World Time Calculator FAQ
Is daylight saving time reflected?
Yes. Browser time-zone data is used for the selected date.
Can I check US stock market hours?
Yes. The page also shows the selected date’s New York regular session in Korea time.
Are all cities supported?
The current list focuses on Korea, major US time zones, UTC, Japan, and major European zones.