Chalna Timer

A big clock with world time comparison, a timer with alarm sounds, a stopwatch with laps, a break timer set to Korea Standard Time and a scrolling sign board for cheering — all free in one place, with full-screen and dark modes.

00:0000

세계 시간 비교

시간
:
분
:
초
00:00.00

 

--:--
1교시 시작 (한국 시각)
수업 시간
쉬는 시간
몇 교시까지
점심시간 (몇 교시 뒤)
점심시간 길이

모든 시각은 한국 표준시(KST, UTC+9) 기준이에요.

0/60
움직임
속도
글자색
배경색
크기
효과

친구에게 전광판 보내기

지금 만든 문구와 색·움직임이 담긴 링크를 보내요.

문구는 링크 안에만 담겨요.

표시되는 시각과 타이머는 참고·비교용이에요. 이용약관 보기

How to use

  1. Clock: pick a city to show its time in large digits. Add cities under "World clock" to see the time difference and whether it is morning or evening there.
  2. Timer: set hours, minutes and seconds or tap a 1 min–1 hour button, then Start. An alarm sounds when time is up.
  3. Stopwatch: measures to 1/100 of a second and records laps.
  4. Break Timer: the "24 hours" tab marks focus time from :00 to the minute you choose each hour, then a break. The school tabs show classes and breaks in Korea Standard Time.
  5. Sign Board: type a message, pick scroll, still, blink or bounce, colors, LED and lighting effects. "Copy link" copies a link you can paste into any chat to send the same sign to a friend.
  6. Use Full screen for big digits or the sign only, and Dark to darken every tab.

About time information

Times, timers and alerts in Chalna Timer are based on your device clock and browser and are for reference and comparison only; accuracy is not guaranteed. For anything where exact time matters — exams, competitions, work, transport, medical care or legal deadlines — please also check the official standard time. Alerts may not sound if the screen turns off or the browser is closed. Read the Terms of Use

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