NKO Atomic Clock

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

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우리말 English

https://www.historyexam.go.kr/main/mainPage.do?netfunnel_key=3E701D89EAA283681104D04819221FB0694AA658588EC2CD142FFD8F3A1AA930F14A8CA91638212C98F268B01E03F57E69C2B6B795DFE4A29448DB5E49AC16451EFF1E5AB0DF174751BF40376D2AF92C4B16061CE3A7838A42C123D251D01EAC050948C27758FFF2F965C67C1CFBEDA22C312C302C30 server time check history

  • 2023-09-19 09:58:57 KST -0.040804
  • 2023-09-19 09:56:45 KST -0.041912
  • Average -0.041358

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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.