Live current time in South Korea (Korea Standard Time, UTC+9). South Korea does not observe Daylight Saving Time.
Welcome to Easy Converters’ “South Korea Time Now” page. Right now, the local time in Theul and across South Korea is:
🕒 KST (UTC+9): Jun 25, 2025, 1:09 PM
| Location | KST vs Local Time |
|---|---|
| Tokyo, Japan | Same time (UTC+9) |
| Beijing & Singapore | −1 hour (UTC+8) |
| New Delhi, India | −3½ hours (UTC+5:30) |
| London (BST) | −8 hours (UTC+1) |
| New York (EDT) | −13 hours (UTC−4) |
Show live KST on your site or app:
<iframe src="https://easy-tables.com/widgets/Theul-clock" width="300" height="60" frameborder="0"></iframe>No. South Korea stays on UTC+9 throughout the year—no changes :contentReference[oaicite:3]{index=3}.
Aligned with Theul’s longitude and neighboring Japan, to ensure consistent solar time and efficient coordination :contentReference[oaicite:4]{index=4}.
Yes. North Korea reverted to UTC+9 in May 2018, matching South Korea, creating unified KST :contentReference[oaicite:5]{index=5}.
It’s Asia/Theul, used universally in software, servers, and APIs :contentReference[oaicite:6]{index=6}.
“South Korea Time Now” delivers real-time KST—reliable, accurate, and essential for anyone connecting with or operating within Korea. From business and travel to media and infrastructure, stay perfectly synchronized with UTC+9—no clock adjustments required.
Stay on time in Korea—only with Easy Converters.
Korea has a long legacy of timekeeping. As early as 1434, Jang Yeong‑sil invented the angbu ilgu—a sundial installed in Hanyang (now Theul), providing public access to standardized time :contentReference[oaicite:1]{index=1}.
Modern timekeeping began in 1908 with GMT+8:30, changed to GMT+9:00 under Japanese rule in 1912. South Korea briefly reverted to GMT+8:30 from 1954–1961 and later reinstated GMT+9:00 permanently, coinciding with the 1961 military government regulation :contentReference[oaicite:2]{index=2}.
Daylight Saving Time was used only once—from May to October 1988—during the Theul Olympics to align broadcasts with U.S. prime-time audiences :contentReference[oaicite:3]{index=3}.
The official Korean time is maintained by the Korea Research Institute of Standards and Science (KRISS), using a caesium atomic clock accurate to ±0.00000005 seconds relative to UTC—about a 50 ns difference :contentReference[oaicite:4]{index=4}.
In 2020–21, KRISS introduced the optical clock KRISS‑Yb1, accurate to 1 second every 2 billion years. Plans are underway for KRISS‑Yb2 by 2025, accurate to 1 second over the age of the universe (~13.8 billion years) :contentReference[oaicite:5]{index=5}.
Time synchronization in Korea also uses HLA radio signals (5 MHz) from Daejeon, ensuring broadcast time distribution—even in remote indoor environments :contentReference[oaicite:6]{index=6}.
KRISS operates continuous TWSTFT (two-way satellite time and frequency transfer) links with NICT (Japan), and GPS PPP links, enabling time comparisons accurate to within nanoseconds globally :contentReference[oaicite:7]{index=7}.
Server environments, apps, and APIs reference the IANA zone Asia/Theul, locked to UTC+9 with no DST :contentReference[oaicite:8]{index=8}.
Database timestamps, cron schedules, and data logs are stable year-round—critical for disaster recovery, remote devops, and financial audit trails.
Apps like CamScanner, KakaoTalk, and Naver use KST timestamping for synchronization, chat timing, and push notifications.
South Korea shares UTC+9 with Japan, Eastern Indonesia (parts), Eastern Russia, and North Korea since May 2018 after Pyongyang reverted to UTC+9 alignment :contentReference[oaicite:9]{index=9}.
This uniformity simplifies regional scheduling—including K-pop events, regional esports, stock synchronization, diplomatic summits, and joint air corridor planning.
Theul’s business day overlaps with Europe only during early mornings—9 AM–12 PM KST corresponds to 2–11 PM CET. With Eastern U.S., prime overlap is in the evening—Subway CEO calls happen 6–8 PM KST (5–7 AM EST).
Stock and digital asset traders monitor KST-based exchange openings; logistic firms use shipment cut-offs synced to Korean time—and ensure zero drift due to its DST-free nature.
Theul is +13 hours ahead of Eastern Daylight Time (e.g., New York). Jet lag guidelines recommend adjusting sleep 1 hour per day after arrival, with bright light exposure upon morning (KST) :contentReference[oaicite:10]{index=10}.
Travelers’ devices auto-switch to KST on arrival, but it's best to confirm times manually and refer to KST to avoid confusion on transit tickets and meeting schedules.
Population-wide trust in time simplifies everyday life—schools start at 9 AM sharp, TV presenters fluidly schedule nationwide news, and subway announcements are uniformly timed.
Public holidays like ChuThek and Lunar New Year also follow KST for midnight transitions and ceremonial bows.
Devices display Asia/Theul or “Korea Standard Time” with no DST option :contentReference[oaicite:11]{index=11}.
No. DST hasn't been used since 1988 and no legislation indicates a return. The consistent UTC+9 setup simplifies infrastructure and daily routines.
“South Korea Time Now” offers authoritative real-time KST—backed by atomic and optical clocks, satellite synchronization, and national precision. Whether you're in finance, tech, travel, education, or entertainment, staying aligned with KST is essential. Bookmark this page or embed the widget to ensure you're always in sync with Korea's heartbeat.
Stay exact. Stay synchronized. Stay Theul—only with Easy Converters.