Seoul to Shanghai Time Converter

Updating current time…
Seoul
South KoreaKST
UTC+9
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Shanghai
ChinaCST
UTC+8
1h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

9:00 pm21:00 KST (UTC+9), Oct 30, 2026 = 8:00 pm20:00 CST (UTC+8), Oct 30, 2026

Seoul is 1 hour ahead of Shanghai.

How the time difference changes

Seoul is 1 hour ahead of Shanghai year-round.

Working hours of 9:00 am to 6:00 pm in Seoul correspond to 8:00 am to 5:00 pm in Shanghai.Working hours of 09:00 to 18:00 in Seoul correspond to 08:00 to 17:00 in Shanghai.

Compare Seoul time with Shanghai time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

KST (Korea Standard Time) is 1 hour ahead of CST (China Standard Time).
9:00 pm21:00 in Seoul, South Korea is 8:00 pm20:00 in Shanghai, China

Seoul to Shanghai call time
Best time for a conference call or a meeting is between 10am-6pm10:00-18:00 in Seoul which corresponds to 9am-5pm09:00-17:00 in Shanghai

9:00 pm21:00 KST (Korea Standard Time) (Seoul, South Korea). Offset UTC +9:00 hours
8:00 pm20:00 CST (China Standard Time) (Shanghai, China). Offset UTC +8:00 hours

9:00 pm21:00 Seoul, South Korea / 8:00 pm20:00 Shanghai, China

Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.

Hourly time comparison
Seoul, South KoreaShanghai, China
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23:00 previous day
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Seoul Time Zone and Facts

Time Zone

Abbreviation / Offset
KST – Korea Standard Time, UTC+9 (no daylight saving time)

Seoul Facts

Country
South Korea
Alternative Names
Hanyang, SEL, Seoel, Seol, Seoul, Seoul-si, Seuel, Seul, Seula, Seulas, Seulo, Seulum, Seúl, Seül, Siul, Soeul, Sol, Soul, Sye-ul, Syou-ouen, Szoeul, Szöul, Séoul, Sêûl, Söul, Sŏul, Wang-ching, Wo-jo, Wō-jō, ciyol, han-yang, saul, seoul, seoulsi, seoulteugbyeolsi, seuli, shou er, shou er te bie shi, si'ula, siyola, sol, sola, souru, souru te bie shi, sywl, Σεούλ, Сеул, Соул, Сөүл, Սեուլ, סאול, סיאול, סעאל, سئول, سيول, سیول, سێئول, سېئول, सियोल, सोल, সিউল, சியோல், ಸೌಲ್, സോൾ, โซล, སེ་ཨུལ།, ဆိုးလ်မြို့, სეული, ሶል, សេអ៊ូល, ソウル, ソウル特別市, 首尔, 首尔特别市, 서울, 서울시, 서울특별시, 한양
Population
10,349,312
Currency
Won (KRW)
Geographic Coordinates
37° 33' N Latitude / 126° 58' E Longitude
International Dialing Code
+82
More About Seoul
Seoul local time and city facts

Shanghai Time Zone and Facts

Time Zone

Abbreviation / Offset
CST – China Standard Time, UTC+8 (no daylight saving time)

Shanghai Facts

Country
China
Alternative Names
SHA, San'nkae, Sanchajus, Sangaj, Sangay, Sanghaj, Sanghay, Sanhaja, Sanhajo, Sanxay, Schanghai, Shang-hai, Shang-hai-shih, Shangai, Shangaj, Shanghai, Shanghai - shang hai, Shanghai - 上海, Shankhaj, Sjanghae, Sjanghai, Sjanghæ, Szanghaj, Thuong Hai, Thượng Hải, Xangai, cankay, sangha'i, sanghae, sanghai, seiynghi, shang hai, shang hai shi, shanghay, shanghhay, shanhai, zhong guo shang hai, Ŝanhajo, Şangay, Şanghay, Şanxay, Šanchajus, Šangaj, Šanghaj, Šanhaja, Σανγκάη, Шангај, Шанхай, שאנגחאי, شانغهاي, شانگهای, شاڭخەي, شاڭخەي شەھىرى, সাংঘাই, சாங்காய், เซี่ยงไฮ้, შანჰაი, 上海, 上海市, 中国上海, 상하이, 상해
Population
24,874,500
Currency
Yuan Renminbi (CNY)
Geographic Coordinates
31° 13' N Latitude / 121° 27' E Longitude
International Dialing Code
+86
More About Shanghai
Shanghai local time and city facts