NKO Atomic Clock

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

☞ Install NKO Atomic Clock(Android app) at Google Playstore
Chatroom by domain
우리말 English

http://for-s.seoultech.ac.kr/html/main.html server time check history

  • 2018-02-13 01:34:03 KST -0.216440
  • 2018-01-26 15:54:08 KST -0.589879
  • 2018-01-26 15:19:34 KST -1.111256
  • 2017-12-05 23:57:58 KST -0.500490
  • 2017-12-01 13:43:57 KST -0.967215
  • 2017-11-24 19:40:44 KST -1.212553
  • 2017-11-20 23:40:03 KST -0.437116
  • 2017-11-17 23:58:59 KST -0.582649
  • 2017-11-16 23:58:45 KST -0.653615
  • 2017-11-15 19:36:36 KST -0.978297
  • Average -0.724951

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.


# 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.