Serwery Czasu

Główny Urząd Miar Polska
tempus1.gum.gov.pl

Google Public NTP:
time.google.com
time1.google.com
time2.google.com
time3.google.com
time4.google.com

Cloudflare NTP:
time.cloudflare.com

Facebook NTP:
time.facebook.com
time1.facebook.com
time2.facebook.com
time3.facebook.com
time4.facebook.com
time5.facebook.com

Microsoft NTP server:
time.windows.com

Apple NTP server:
time.apple.com
time1.apple.com
time2.apple.com
time3.apple.com
time4.apple.com
time5.apple.com
time6.apple.com
time7.apple.com
time.euro.apple.com

NIST Internet Time Service (ITS):
time-a-g.nist.gov
time-b-g.nist.gov
time-c-g.nist.gov
time-d-g.nist.gov
time-a-wwv.nist.gov
time-b-wwv.nist.gov
time-c-wwv.nist.gov
time-d-wwv.nist.gov
time-a-b.nist.gov
time-b-b.nist.gov
time-c-b.nist.gov
time-d-b.nist.gov
time.nist.gov
utcnist.colorado.edu
utcnist2.colorado.edu