Sunrise · Sunset Time Calculator한국어

Sunrise & Sunset Time Calculator

Choose a location and date to compute sunrise, sunset, solar noon, and twilight with astronomical formulas — no external API. See which spot catches the first sunrise.

🎆 New Year Sunrise Countdown

Until next New Year sunrise 116 days left

📍 Location

📅 Date

(Mon)

🌅 Seoul

2026-09-07 (Mon)

All times shown in Korea Standard Time (KST)

🌅 Sunrise

06:07

🌇 Sunset

18:53

☀️ Solar noon

12:30

⏱️ Day length

12h 46m

🌄 Twilight & Details

🌆 Civil dawn

05:40

🌉 Civil dusk

19:19

📐 Noon altitude

58.5°

⚓ Nautical dawn

05:09

⚓ Nautical dusk

19:51

📸 Golden hour (AM)

05:42~06:32

📸 Golden hour (PM): 18:28~19:18

🏆 Sunrise Spot Ranking (Earliest First)

Locations across Korea sorted by sunrise time (earliest first) for the selected date.

RankPlaceSunrise
1 · EarliestDokdo🌊05:48
2Homigot🌊05:58
3Chuam Rock🌊05:58
4Pohang🏙️05:59
5Jeongdongjin🌊05:59
6Ganjeolgot🌊05:59
7Ulsan🏙️05:59
8Gangneung🏙️05:59
9Busan🏙️06:00
10Daegu🏙️06:02
11Chuncheon🏙️06:04
12Cheongju🏙️06:06
13Hyangiram🌊06:06
14Daejeon🏙️06:06
15Yeosu🏙️06:06
16Seoul🏙️06:07
17Suwon🏙️06:07
18Jeonju🏙️06:08
19Incheon🏙️06:08
20Gwangju🏙️06:09
21Seongsan Ilchulbong🌊06:10
22Ttangkkeut🌊06:11
23Mokpo🏙️06:11
24Jeju🏙️06:12
25Marado🌊06:13

Method & accuracy

  • 🧮 Computed in-browser with the NOAA solar-position algorithm (Julian day → solar declination & equation of time → latitude-based hour angle). No external API.
  • 📐 Sunrise/sunset use a 90°50' zenith (34' refraction + 16' solar radius). Civil twilight 96° · nautical 102°.
  • 🕘 Time zone: Korea Standard Time (KST, UTC+9), no daylight saving.

※ Elevation and atmosphere are approximated, so results may differ from official KASI values by seconds to tens of seconds. For official purposes, check KASI or the KMA.

Learn more · bal.pe.kr tools

See the Guide for how it works, the FAQ for common questions, and About for data and accuracy. Guide · FAQ · About. Last updated 2026-07-11.