NKO Atomic Clock

Current time in milliseconds unit, dday remaining time calculator, elapsed time, stopwatch, server time checker


Chatroom by domain
우리말 English

http://sugang.yu.ac.kr/index_sugang.html server time check history

  • 2025-06-19 13:40:11 KST -0.003686
  • 2025-06-17 09:21:48 KST -0.013476
  • 2025-06-15 07:39:58 KST -0.041841
  • 2025-06-13 05:36:13 KST 0.016023
  • 2025-06-10 21:07:43 KST -0.013757
  • 2025-06-08 19:01:43 KST 0.020139
  • 2025-06-06 11:13:07 KST -0.036236
  • 2025-06-04 01:15:53 KST -0.051897
  • 2025-06-01 11:56:44 KST 0.011288
  • 2025-05-29 15:24:36 KST -0.044580
  • Average -0.0158023

Recent view

Popular checks

We fetch a server clock and let you see

Webservers transmit their time in seconds unit, so without special treatment, the maximum error would be as big as 1 second. NKO Atomic Clock calculates a server time more than ten times in 1 second and seize the moment when the second changes. Thus we can minimize the calculation error as small as 0.1 second. Moreover, delays between our server and a destination server are considered so the accuracy of time increases.

NKO supports the HTTPS protocol and subdomains

Some servers use different servers over protocols or subdomains. You can get a desired result by specifying more details.

Information

# You need to tell us an exact server address. For example, some sites host differently by whether the address begin with WWW or not.

# Even if your computer clock isn't synchronized, NKO always will display correct time.

# If you click a numeric time error in the history view, the clock will use that measurement.

# The results can have quite much error if the destination server is under load balancing. Please refer to a variance in the server time history information.

# A particular service uses its own time clock, different with web servers' clock. in this case, server time guessing is not meaningful.