How to get exact time since iOS device booted? [duplicate]

1

This question already has an answer here:

• 
  Getting iOS system uptime, that doesn't pause when asleep
  
  6 answers
  
  

I've encountered a problem. I need to get the exact TimeInterval since the device was booted. In the CoreMotion framework CMLogItem class have timestamp property, it returns exact time since device was booted. (link) This is necessary in order to measure the exact time for which the event occurred.

I tried the following code:

let timestamp = ProcessInfo.processInfo.systemUptime

but it returns different time than i need.
Any help is appreciated, thanks in advance!

ios swift core-motion

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asked Apr 7 '17 at 11:03

Andrey M.Andrey M.

1,2541229

marked as duplicate by ayaio, Rob Napier ios
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Apr 7 '17 at 12:15

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

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1

This question already has an answer here:

• 
  Getting iOS system uptime, that doesn't pause when asleep
  
  6 answers
  
  

I've encountered a problem. I need to get the exact TimeInterval since the device was booted. In the CoreMotion framework CMLogItem class have timestamp property, it returns exact time since device was booted. (link) This is necessary in order to measure the exact time for which the event occurred.

I tried the following code:

let timestamp = ProcessInfo.processInfo.systemUptime

but it returns different time than i need.
Any help is appreciated, thanks in advance!

ios swift core-motion

share|improve this question

asked Apr 7 '17 at 11:03

Andrey M.Andrey M.

1,2541229

marked as duplicate by ayaio, Rob Napier ios
Users with the  ios badge can single-handedly close ios questions as duplicates and reopen them as needed.

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Apr 7 '17 at 12:15

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

add a comment | 

1

1

1

This question already has an answer here:

• 
  Getting iOS system uptime, that doesn't pause when asleep
  
  6 answers
  
  

I've encountered a problem. I need to get the exact TimeInterval since the device was booted. In the CoreMotion framework CMLogItem class have timestamp property, it returns exact time since device was booted. (link) This is necessary in order to measure the exact time for which the event occurred.

I tried the following code:

let timestamp = ProcessInfo.processInfo.systemUptime

but it returns different time than i need.
Any help is appreciated, thanks in advance!

ios swift core-motion

share|improve this question

asked Apr 7 '17 at 11:03

Andrey M.Andrey M.

1,2541229

This question already has an answer here:

• 
  Getting iOS system uptime, that doesn't pause when asleep
  
  6 answers
  
  

I've encountered a problem. I need to get the exact TimeInterval since the device was booted. In the CoreMotion framework CMLogItem class have timestamp property, it returns exact time since device was booted. (link) This is necessary in order to measure the exact time for which the event occurred.

I tried the following code:

let timestamp = ProcessInfo.processInfo.systemUptime

but it returns different time than i need.
Any help is appreciated, thanks in advance!

This question already has an answer here:

• 
  Getting iOS system uptime, that doesn't pause when asleep
  
  6 answers
  
  

ios swift core-motion

ios swift core-motion

share|improve this question

asked Apr 7 '17 at 11:03

Andrey M.Andrey M.

1,2541229

share|improve this question

asked Apr 7 '17 at 11:03

Andrey M.Andrey M.

1,2541229

share|improve this question

share|improve this question

asked Apr 7 '17 at 11:03

Andrey M.Andrey M.

1,2541229

asked Apr 7 '17 at 11:03

Andrey M.Andrey M.

1,2541229

asked Apr 7 '17 at 11:03

Andrey M.Andrey M.

1,2541229

1,2541229

marked as duplicate by ayaio, Rob Napier ios
Users with the  ios badge can single-handedly close ios questions as duplicates and reopen them as needed.

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Apr 7 '17 at 12:15

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

marked as duplicate by ayaio, Rob Napier ios
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Apr 7 '17 at 12:15

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

add a comment | 

add a comment | 

1 Answer
1

active

oldest

votes

1

After investigation of the data you provide. It is possible to conclude that CMLog​Item:

The CMLog​Item class is a base class for Core Motion classes that
handle specific types of motion events. Objects of this class
represent a piece of time-tagged data that can be logged to a file.

CMLog​Item defines only a read-only timestamp property that records the time a motion-event measurement was taken. Not the exact time since device was booted.

By ProcessInfo.processInfo.systemUptime you going to get time from the last time it was restarted.

I believe data that you would like to obtain is quite specific and is under Private API of the iOS.

share|improve this answer

answered Apr 7 '17 at 11:35

Oleg GordiichukOleg Gordiichuk

9,79853873

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for response.
  
  – Andrey M.
  Apr 10 '17 at 7:24
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  here developer.apple.com/reference/coremotion/cmlogitem/… you can see that timestamp is amount of time since the device booted.
  
  – Andrey M.
  Apr 24 '17 at 8:59
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @AndreyM. thx for sharing of the info
  
  – Oleg Gordiichuk
  Apr 24 '17 at 8:59
  

  
  
  
  

add a comment | 

1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

active

oldest

votes

active

oldest

votes

1

After investigation of the data you provide. It is possible to conclude that CMLog​Item:

The CMLog​Item class is a base class for Core Motion classes that
handle specific types of motion events. Objects of this class
represent a piece of time-tagged data that can be logged to a file.

CMLog​Item defines only a read-only timestamp property that records the time a motion-event measurement was taken. Not the exact time since device was booted.

By ProcessInfo.processInfo.systemUptime you going to get time from the last time it was restarted.

I believe data that you would like to obtain is quite specific and is under Private API of the iOS.

share|improve this answer

answered Apr 7 '17 at 11:35

Oleg GordiichukOleg Gordiichuk

9,79853873

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for response.
  
  – Andrey M.
  Apr 10 '17 at 7:24
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  here developer.apple.com/reference/coremotion/cmlogitem/… you can see that timestamp is amount of time since the device booted.
  
  – Andrey M.
  Apr 24 '17 at 8:59
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @AndreyM. thx for sharing of the info
  
  – Oleg Gordiichuk
  Apr 24 '17 at 8:59
  

  
  
  
  

add a comment | 

1

After investigation of the data you provide. It is possible to conclude that CMLog​Item:

The CMLog​Item class is a base class for Core Motion classes that
handle specific types of motion events. Objects of this class
represent a piece of time-tagged data that can be logged to a file.

CMLog​Item defines only a read-only timestamp property that records the time a motion-event measurement was taken. Not the exact time since device was booted.

By ProcessInfo.processInfo.systemUptime you going to get time from the last time it was restarted.

I believe data that you would like to obtain is quite specific and is under Private API of the iOS.

share|improve this answer

answered Apr 7 '17 at 11:35

Oleg GordiichukOleg Gordiichuk

9,79853873

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for response.
  
  – Andrey M.
  Apr 10 '17 at 7:24
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  here developer.apple.com/reference/coremotion/cmlogitem/… you can see that timestamp is amount of time since the device booted.
  
  – Andrey M.
  Apr 24 '17 at 8:59
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @AndreyM. thx for sharing of the info
  
  – Oleg Gordiichuk
  Apr 24 '17 at 8:59
  

  
  
  
  

add a comment | 

1

1

1

After investigation of the data you provide. It is possible to conclude that CMLog​Item:

The CMLog​Item class is a base class for Core Motion classes that
handle specific types of motion events. Objects of this class
represent a piece of time-tagged data that can be logged to a file.

CMLog​Item defines only a read-only timestamp property that records the time a motion-event measurement was taken. Not the exact time since device was booted.

By ProcessInfo.processInfo.systemUptime you going to get time from the last time it was restarted.

I believe data that you would like to obtain is quite specific and is under Private API of the iOS.

share|improve this answer

answered Apr 7 '17 at 11:35

Oleg GordiichukOleg Gordiichuk

9,79853873

After investigation of the data you provide. It is possible to conclude that CMLog​Item:

The CMLog​Item class is a base class for Core Motion classes that
handle specific types of motion events. Objects of this class
represent a piece of time-tagged data that can be logged to a file.

CMLog​Item defines only a read-only timestamp property that records the time a motion-event measurement was taken. Not the exact time since device was booted.

By ProcessInfo.processInfo.systemUptime you going to get time from the last time it was restarted.

I believe data that you would like to obtain is quite specific and is under Private API of the iOS.

share|improve this answer

answered Apr 7 '17 at 11:35

Oleg GordiichukOleg Gordiichuk

9,79853873

share|improve this answer

share|improve this answer

answered Apr 7 '17 at 11:35

Oleg GordiichukOleg Gordiichuk

9,79853873

answered Apr 7 '17 at 11:35

Oleg GordiichukOleg Gordiichuk

9,79853873

answered Apr 7 '17 at 11:35

Oleg GordiichukOleg Gordiichuk

9,79853873

9,79853873

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for response.
  
  – Andrey M.
  Apr 10 '17 at 7:24
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  here developer.apple.com/reference/coremotion/cmlogitem/… you can see that timestamp is amount of time since the device booted.
  
  – Andrey M.
  Apr 24 '17 at 8:59
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @AndreyM. thx for sharing of the info
  
  – Oleg Gordiichuk
  Apr 24 '17 at 8:59
  

  
  
  
  

add a comment | 

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for response.
  
  – Andrey M.
  Apr 10 '17 at 7:24
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  here developer.apple.com/reference/coremotion/cmlogitem/… you can see that timestamp is amount of time since the device booted.
  
  – Andrey M.
  Apr 24 '17 at 8:59
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @AndreyM. thx for sharing of the info
  
  – Oleg Gordiichuk
  Apr 24 '17 at 8:59
  

  
  
  
  

Thanks for response.

– Andrey M.
Apr 10 '17 at 7:24

Thanks for response.

– Andrey M.
Apr 10 '17 at 7:24

here developer.apple.com/reference/coremotion/cmlogitem/… you can see that timestamp is amount of time since the device booted.

– Andrey M.
Apr 24 '17 at 8:59

here developer.apple.com/reference/coremotion/cmlogitem/… you can see that timestamp is amount of time since the device booted.

– Andrey M.
Apr 24 '17 at 8:59

@AndreyM. thx for sharing of the info

– Oleg Gordiichuk
Apr 24 '17 at 8:59

@AndreyM. thx for sharing of the info

– Oleg Gordiichuk
Apr 24 '17 at 8:59

add a comment | 

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