Date and Time settings: Where do they come from?

[adam9c1]

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.

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Where do iOS devices pull in their date / time settings from?
- Local DHCP
- Apple

 

[C DM]

Time and date can be set at Settings > General > Date & Time

 

[adam9c1]

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?

 

[GreyOS]

I have no idea

 

[Jessica Lares]

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?

If it's like the Macs, then time.apple.com

 

[GreyOS]

btw if you google iphone date time 1970 you get a lot of hits

 

[Xenomorph]

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

When set to automatic the units at work loose time and go to 1970.

Some firewalls may block NTP responses.

 

[adamhenry]

Some firewalls may block NTP responses.

Agree with this. If network admins block access to external NTP(network time protocol)servers, they should provide an internal NTP server.

 

[moonman239]

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