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  2. Time synchronization in North America - Wikipedia

    en.wikipedia.org/wiki/Time_synchronization_in...

    pool.ntp.org: Computer with NTP client that syncs at least once an hour. ntpd, sntp, ntpdate: Meinberg NTP [23] NetTime [24] ToyNTP [16] BktTimeSync by IZ2BKT [17] NTPSec Precision Time Protocol: Domain Time II [25] NIST Telephone Time of Day Service [26] UTC(NIST) + 1-303-499-7111 + 1-808-335-4363; Voice announcement with sync pips. Telephone ...

  3. List of time offsets by U.S. state and territory - Wikipedia

    en.wikipedia.org/wiki/List_of_time_offsets_by_U...

    State federal district or territory Time Offsets DST Details Map Alabama: UTC−06:00 CT: Yes: Central Standard Time (Phenix City observes Eastern time on a de facto basis) Alaska: UTC−09:00 AKT Yes Most of state: UTC−09:00 AKST Alaska Standard Time: UTC−10:00 HT Aleutian Islands (west of 169°30' W): UTC−10:00 HST Hawaii–Aleutian ...

  4. NTP pool - Wikipedia

    en.wikipedia.org/wiki/NTP_pool

    The NTP pool is a dynamic collection of networked computers that volunteer to provide highly accurate time via the Network Time Protocol to clients worldwide. The machines that are "in the pool" are part of the pool.ntp.org domain as well as of several subdomains divided by geographical zone and are distributed to NTP clients via round-robin DNS.

  5. Network Time Protocol - Wikipedia

    en.wikipedia.org/wiki/Network_Time_Protocol

    NTP is intended to synchronize participating computers to within a few milliseconds of Coordinated Universal Time (UTC). [1]: 3 It uses the intersection algorithm, a modified version of Marzullo's algorithm, to select accurate time servers and is designed to mitigate the effects of variable network latency.

  6. List of UTC offsets - Wikipedia

    en.wikipedia.org/wiki/List_of_UTC_offsets

    Entire state except the counties of Bay, Calhoun, Escambia, Holmes, Jackson, Okaloosa, Santa Rosa, Walton, and Washington, and northern Gulf county (panhandle) Georgia; Indiana [22] Except the northwestern counties of Jasper, Lake, LaPorte, Newton, Porter and Starke, and the southwestern counties of Gibson, Perry, Posey, Spencer, Vanderburgh ...

  7. NTP server misuse and abuse - Wikipedia

    en.wikipedia.org/wiki/NTP_server_misuse_and_abuse

    In 2015, due to possible attacks to Network Time Protocol, [27] a Network Time Security for NTP (Internet Draft draft-ietf-ntp-using-nts-for-ntp-19) [28] was proposed using a Transport Layer Security implementation. On June 21, 2019 Cloudflare started a trial service around the world, [29] based on a previous Internet Draft. [30]

  8. State Plane Coordinate System - Wikipedia

    en.wikipedia.org/wiki/State_Plane_Coordinate_System

    Outside a specific state plane zone accuracy rapidly declines, thus the system is not useful for regional or national mapping. Most state plane zones are based on either a transverse Mercator projection or a Lambert conformal conic projection. The choice between the two map projections is based on the shape of the state and its zones. States ...

  9. Gaps of the Allegheny - Wikipedia

    en.wikipedia.org/wiki/Gaps_of_the_Allegheny

    Location of Kittanning Gap after GNIS finding of 'Kittanning Gap, Pennsylvania' seen in USGS National Map viewer screenshot. The gap is located effectively in a western suburb of Altoona. • The maps on this page also are showing the nearby PRR Horseshoe Curve which crosses watercourses cutting three other gaps.