Date and Time settings: Where do they come from?

Discussion in 'iOS 8' started by adam9c1, Apr 24, 2015.

?

Where do WiFi iOS devices receive time info from?

Poll closed Apr 29, 2015.
  1. Apple(dot)com

    20.0%
  2. Local Network providing IP

    40.0%
  3. I have no idea

    40.0%
  1. adam9c1 macrumors 65816

    adam9c1

    Joined:
    May 2, 2012
    Location:
    Chicagoland
    #1
    At my workplace things are very well locked down, sometimes too well.

    We have iOS devices which out of the blue loose date and time settings and show up 1970s date.

    I can manually scroll and set to correct, or connect the device to another network (my phone hotspot) and it will reset correctly.

    -------------
    Where do iOS devices pull in their date / time settings from?
    - Local DHCP
    - Apple
     
  2. C DM macrumors Westmere

    Joined:
    Oct 17, 2011
    #2
    Time and date can be set at Settings > General > Date & Time
     
  3. adam9c1 thread starter macrumors 65816

    adam9c1

    Joined:
    May 2, 2012
    Location:
    Chicagoland
    #3
    Right,
    When set to automatic the units at work loose time and go to 1970.

    That's why I connected to another network and it automatically fixed it.

    Where does the device get this info from?
     
  4. GreyOS macrumors 68030

    GreyOS

    Joined:
    Apr 12, 2012
  5. Jessica Lares macrumors G3

    Jessica Lares

    Joined:
    Oct 31, 2009
    Location:
    Near Dallas, Texas, USA
    #5
    If it's like the Macs, then time.apple.com
     
  6. GreyOS macrumors 68030

    GreyOS

    Joined:
    Apr 12, 2012
    #6
    btw if you google iphone date time 1970 you get a lot of hits
     
  7. Xenomorph macrumors 65816

    Xenomorph

    Joined:
    Aug 6, 2008
    Location:
    St. Louis
    #7

    Some firewalls may block NTP responses.
     
  8. adamhenry macrumors 65816

    adamhenry

    Joined:
    Jan 1, 2015
    Location:
    On the Beach
    #8
    Agree with this. If network admins block access to external NTP(network time protocol)servers, they should provide an internal NTP server.
     
  9. moonman239 macrumors 68000

    Joined:
    Mar 27, 2009
    #9
    Technically, the information comes from what's known as an NTP (Network Time Protocol) server. The server they use is at time.apple.com.
     

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