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Time Synchronization

Started by Biterider, March 27, 2021, 05:52:44 AM

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Biterider

March 27, 2021, 05:52:44 AM Last Edit: March 27, 2021, 06:07:45 PM by Biterider
Hi
Time synchronization is a technique that is required when we communicate between different machines over a network.
I found here in the forum and in some documents on the internet how to use the Network Time Protocol (NPT) and how to adjust the time taking into account the transmission delay. Since I do not connect to multiple servers and do not establish multiple connections to one server, I have not implemented the statistical evaluation for a NTP compliant client. I just correct the time with the data collected from a single connection.

To check reliability and response speed, I put the code in a test piece that connects to some well-known NTP servers. There are a few favorites on my site, but I would like to ask if you can run the binary (maybe more than 1 time) and share your location and the information displayed from the console output.  :biggrin:

Attached the binary (32 bit) and the source code.

Thanks, Biterider

FORTRANS

#1
March 27, 2021, 07:14:53 AM
Hi,

   The program did not run on Windows XP or earlier.
It did run with windows 8.1.  Seems to be a quick
program.  It did not appear there was any way to
capture the program output.  Was there specific
information you wanted?

Regards,

Steve N.

HSE

#2
March 27, 2021, 09:30:12 AM
Hi Biterider!

Quote from: Biterider on March 27, 2021, 05:52:44 AMthe information displayed from the console output.  :biggrin:
What the purpose of a console output in a Win GUI application if you capture output?

:biggrin: I just send output to DebugCenter:
Code Select
pool.ntp.org
edx = 265t, Total delay in ms
NetTime.wYear = 2021t
NetTime.wMonth = 3t
NetTime.wDay = 26t
NetTime.wHour = 22t
NetTime.wMinute = 10t
NetTime.wSecond = 23t
NetTime.wMilliseconds = 586t
──────────────────────────────────────────────────────────────────────
time.nist.gov
edx = 203t, Total delay in ms
NetTime.wYear = 2021t
NetTime.wMonth = 3t
NetTime.wDay = 26t
NetTime.wHour = 22t
NetTime.wMinute = 10t
NetTime.wSecond = 23t
NetTime.wMilliseconds = 854t
──────────────────────────────────────────────────────────────────────
time-c.nist.gov
edx = 172t, Total delay in ms
NetTime.wYear = 2021t
NetTime.wMonth = 3t
NetTime.wDay = 26t
NetTime.wHour = 22t
NetTime.wMinute = 10t
NetTime.wSecond = 24t
NetTime.wMilliseconds = 38t
──────────────────────────────────────────────────────────────────────
tick.usno.navy.mil
WSA Error
eax = 10060t
──────────────────────────────────────────────────────────────────────
ut1-wwv.nist.gov
edx = 203t, Total delay in ms
NetTime.wYear = 2021t
NetTime.wMonth = 3t
NetTime.wDay = 26t
NetTime.wHour = 22t
NetTime.wMinute = 10t
NetTime.wSecond = 25t
NetTime.wMilliseconds = 101t
──────────────────────────────────────────────────────────────────────
ntp0.cornell.edu
edx = 172t, Total delay in ms
NetTime.wYear = 2021t
NetTime.wMonth = 3t
NetTime.wDay = 26t
NetTime.wHour = 22t
NetTime.wMinute = 10t
NetTime.wSecond = 25t
NetTime.wMilliseconds = 467t
──────────────────────────────────────────────────────────────────────
time.google.com
edx = 171t, Total delay in ms
NetTime.wYear = 2021t
NetTime.wMonth = 3t
NetTime.wDay = 26t
NetTime.wHour = 22t
NetTime.wMinute = 10t
NetTime.wSecond = 25t
NetTime.wMilliseconds = 652t
──────────────────────────────────────────────────────────────────────
time.windows.com
edx = 187t, Total delay in ms
NetTime.wYear = 2021t
NetTime.wMonth = 3t
NetTime.wDay = 26t
NetTime.wHour = 22t
NetTime.wMinute = 10t
NetTime.wSecond = 25t
NetTime.wMilliseconds = 877t
──────────────────────────────────────────────────────────────────────
time.euro.apple.com
edx = 406t, Total delay in ms
NetTime.wYear = 2021t
NetTime.wMonth = 3t
NetTime.wDay = 26t
NetTime.wHour = 22t
NetTime.wMinute = 10t
NetTime.wSecond = 26t
NetTime.wMilliseconds = 304t
──────────────────────────────────────────────────────────────────────


Regards, HSE.

PD: Ok, must be CON32, but
      "Error A2102: Symbol not defined : USER_INTERFACE_CON"
Equations in Assembly: SmplMath

Biterider

#3
March 27, 2021, 05:26:10 PM
Hi
@Fortrans: I've successfully tested the app on Win7, Win8.1 and Win10. I don't have an XP machine anymore :sad:

@HSE: It is actually a NUI32 application without an interface. I just redirected the debug output to the console. I did it this way because I assumed that not all have DebugCenter on their systems.

I changed the app a bit to perform 5 retries and output the results to a text file called GetNetworkTime.dbg (in the same directory as the binary). This change should solve the copy of the collected information on all operating systems.
When the app finished, a DialogBox is shown displaying "NTP-Server requests ready." The time it takes for the app to run depends on the number of timeouts when a server fails to respond or a UDP packet is lost.
Basically, I want to know how quickly this group of servers is responding from different places around the world, hence the location information.

My observation from the past few days is that results vary over the course of the day. The response time seems to be more or less stable for each server in a certain range, but UDP packet loss seems to be the main problem.
From my location (Switzerland) the servers can be divided into fast and slow, those that respond in less than 100 ms and those that take longer.
I will be interesting to see more information from other places in the world.

Biterider

Siekmanski

#4
March 27, 2021, 06:21:21 PM
From the Netherlands

Code Select
pool.ntp.org
Delay = 204t, [ms]
ServerTime = 27.03.2021 07:19:02.540
WSA Error
eax = 10060t
WSA Error
eax = 10060t
Delay = 16t, [ms]
ServerTime = 27.03.2021 07:19:03.478
Delay = 15t, [ms]
ServerTime = 27.03.2021 07:19:03.494
-------------------------------------------------------
time.nist.gov
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
-------------------------------------------------------
time-c.nist.gov
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
-------------------------------------------------------
tick.usno.navy.mil
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
-------------------------------------------------------
ut1-wwv.nist.gov
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
-------------------------------------------------------
ntp0.cornell.edu
Delay = 110t, [ms]
ServerTime = 27.03.2021 07:19:13.904
Delay = 125t, [ms]
ServerTime = 27.03.2021 07:19:14.025
Delay = 109t, [ms]
ServerTime = 27.03.2021 07:19:14.136
Delay = 109t, [ms]
ServerTime = 27.03.2021 07:19:14.249
Delay = 109t, [ms]
ServerTime = 27.03.2021 07:19:14.364
-------------------------------------------------------
time.google.com
Delay = 16t, [ms]
ServerTime = 27.03.2021 07:19:14.407
Delay = 31t, [ms]
ServerTime = 27.03.2021 07:19:14.436
Delay = 16t, [ms]
ServerTime = 27.03.2021 07:19:14.449
Delay = 31t, [ms]
ServerTime = 27.03.2021 07:19:14.484
Delay = 15t, [ms]
ServerTime = 27.03.2021 07:19:14.496
-------------------------------------------------------
time.windows.com
Delay = 31t, [ms]
ServerTime = 27.03.2021 07:19:14.548
Delay = 16t, [ms]
ServerTime = 27.03.2021 07:19:14.560
Delay = 31t, [ms]
ServerTime = 27.03.2021 07:19:14.595
Delay = 16t, [ms]
ServerTime = 27.03.2021 07:19:14.605
Delay = 15t, [ms]
ServerTime = 27.03.2021 07:19:14.623
-------------------------------------------------------
time.euro.apple.com
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
-------------------------------------------------------
Creative coders use backward thinking techniques as a strategy.

FORTRANS

#5
March 27, 2021, 11:15:10 PM
Hi,

   From NW Florida, USA.

Code Select
pool.ntp.org
Delay = 47t, [ms]
ServerTime = 27.03.2021 11:57:37.653
Delay = 62t, [ms]
ServerTime = 27.03.2021 11:57:37.752
Delay = 47t, [ms]
ServerTime = 27.03.2021 11:57:37.809
Delay = 47t, [ms]
ServerTime = 27.03.2021 11:57:37.878
Delay = 47t, [ms]
ServerTime = 27.03.2021 11:57:37.936
-------------------------------------------------------
time.nist.gov
Delay = 62t, [ms]
ServerTime = 27.03.2021 11:57:38.048
Delay = 62t, [ms]
ServerTime = 27.03.2021 11:57:38.129
Delay = 62t, [ms]
ServerTime = 27.03.2021 11:57:38.210
Delay = 78t, [ms]
ServerTime = 27.03.2021 11:57:38.300
Delay = 63t, [ms]
ServerTime = 27.03.2021 11:57:38.367
-------------------------------------------------------
time-c.nist.gov
Delay = 62t, [ms]
ServerTime = 27.03.2021 11:57:38.472
Delay = 63t, [ms]
ServerTime = 27.03.2021 11:57:38.532
Delay = 62t, [ms]
ServerTime = 27.03.2021 11:57:38.600
Delay = 47t, [ms]
ServerTime = 27.03.2021 11:57:38.659
Delay = 47t, [ms]
ServerTime = 27.03.2021 11:57:38.722
-------------------------------------------------------
tick.usno.navy.mil
Delay = 78t, [ms]
ServerTime = 27.03.2021 11:57:38.847
Delay = 62t, [ms]
ServerTime = 27.03.2021 11:57:38.926
Delay = 78t, [ms]
ServerTime = 27.03.2021 11:57:39.020
Delay = 78t, [ms]
ServerTime = 27.03.2021 11:57:39.106
Delay = 78t, [ms]
ServerTime = 27.03.2021 11:57:39.195
-------------------------------------------------------
ut1-wwv.nist.gov
Delay = 62t, [ms]
ServerTime = 27.03.2021 11:57:39.172
Delay = 62t, [ms]
ServerTime = 27.03.2021 11:57:39.255
Delay = 78t, [ms]
ServerTime = 27.03.2021 11:57:39.347
Delay = 78t, [ms]
ServerTime = 27.03.2021 11:57:39.424
WSA Error
eax = 10060t
-------------------------------------------------------
ntp0.cornell.edu
Delay = 63t, [ms]
ServerTime = 27.03.2021 11:57:40.190
Delay = 62t, [ms]
ServerTime = 27.03.2021 11:57:40.254
Delay = 63t, [ms]
ServerTime = 27.03.2021 11:57:40.319
Delay = 62t, [ms]
ServerTime = 27.03.2021 11:57:40.382
Delay = 63t, [ms]
ServerTime = 27.03.2021 11:57:40.448
-------------------------------------------------------
time.google.com
Delay = 31t, [ms]
ServerTime = 27.03.2021 11:57:40.522
Delay = 31t, [ms]
ServerTime = 27.03.2021 11:57:40.562
Delay = 47t, [ms]
ServerTime = 27.03.2021 11:57:40.610
Delay = 31t, [ms]
ServerTime = 27.03.2021 11:57:40.642
Delay = 47t, [ms]
ServerTime = 27.03.2021 11:57:40.690
-------------------------------------------------------
time.windows.com
Delay = 78t, [ms]
ServerTime = 27.03.2021 11:57:40.797
Delay = 62t, [ms]
ServerTime = 27.03.2021 11:57:40.873
Delay = 63t, [ms]
ServerTime = 27.03.2021 11:57:40.943
Delay = 94t, [ms]
ServerTime = 27.03.2021 11:57:41.028
Delay = 62t, [ms]
ServerTime = 27.03.2021 11:57:41.099
-------------------------------------------------------
time.euro.apple.com
Delay = 31t, [ms]
ServerTime = 27.03.2021 11:57:41.177
Delay = 47t, [ms]
ServerTime = 27.03.2021 11:57:41.223
Delay = 31t, [ms]
ServerTime = 27.03.2021 11:57:41.255
Delay = 47t, [ms]
ServerTime = 27.03.2021 11:57:41.301
Delay = 31t, [ms]
ServerTime = 27.03.2021 11:57:41.332
-------------------------------------------------------


Regards,

Steve N.

HSE

#6
March 28, 2021, 12:45:52 AM
Quote from: Biterider on March 27, 2021, 05:26:10 PM
the servers can be divided into fast and slow, those that respond in less than 100 ms and those that take longer.
Interesting, yesterday time.euro.apple.com was fast, now is slow.

There is something strange with numbers, ej. 31 or 47.

Code Select
pool.ntp.org
Delay = 156t, [ms]
ServerTime = 27.03.2021 13:29:22.389
Delay = 156t, [ms]
ServerTime = 27.03.2021 13:29:22.551
Delay = 156t, [ms]
ServerTime = 27.03.2021 13:29:22.709
Delay = 156t, [ms]
ServerTime = 27.03.2021 13:29:22.868
Delay = 140t, [ms]
ServerTime = 27.03.2021 13:29:23.020
-------------------------------------------------------
time.nist.gov
Delay = 203t, [ms]
ServerTime = 27.03.2021 13:29:23.316
Delay = 203t, [ms]
ServerTime = 27.03.2021 13:29:23.534
WSA Error
eax = 10060t
Delay = 203t, [ms]
ServerTime = 27.03.2021 13:29:24.766
Delay = 218t, [ms]
ServerTime = 27.03.2021 13:29:24.980
-------------------------------------------------------
time-c.nist.gov
Delay = 172t, [ms]
ServerTime = 27.03.2021 13:29:25.159
Delay = 171t, [ms]
ServerTime = 27.03.2021 13:29:25.327
Delay = 156t, [ms]
ServerTime = 27.03.2021 13:29:25.490
Delay = 172t, [ms]
ServerTime = 27.03.2021 13:29:25.669
Delay = 171t, [ms]
ServerTime = 27.03.2021 13:29:25.837
-------------------------------------------------------
tick.usno.navy.mil
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
-------------------------------------------------------
ut1-wwv.nist.gov
Delay = 203t, [ms]
ServerTime = 27.03.2021 13:29:31.244
Delay = 187t, [ms]
ServerTime = 27.03.2021 13:29:31.429
Delay = 188t, [ms]
ServerTime = 27.03.2021 13:29:31.622
Delay = 202t, [ms]
ServerTime = 27.03.2021 13:29:31.822
WSA Error
eax = 10060t
-------------------------------------------------------
ntp0.cornell.edu
Delay = 172t, [ms]
ServerTime = 27.03.2021 13:29:33.185
Delay = 172t, [ms]
ServerTime = 27.03.2021 13:29:33.355
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
-------------------------------------------------------
time.google.com
Delay = 31t, [ms]
ServerTime = 27.03.2021 13:29:36.405
Delay = 47t, [ms]
ServerTime = 27.03.2021 13:29:36.451
Delay = 31t, [ms]
ServerTime = 27.03.2021 13:29:36.483
Delay = 47t, [ms]
ServerTime = 27.03.2021 13:29:36.533
Delay = 31t, [ms]
ServerTime = 27.03.2021 13:29:36.562
-------------------------------------------------------
time.windows.com
Delay = 172t, [ms]
ServerTime = 27.03.2021 13:29:36.761
Delay = 187t, [ms]
ServerTime = 27.03.2021 13:29:36.957
Delay = 187t, [ms]
ServerTime = 27.03.2021 13:29:37.145
Delay = 187t, [ms]
ServerTime = 27.03.2021 13:29:37.332
Delay = 172t, [ms]
ServerTime = 27.03.2021 13:29:37.508
-------------------------------------------------------
time.euro.apple.com
Delay = 172t, [ms]
ServerTime = 27.03.2021 13:29:37.719
Delay = 156t, [ms]
ServerTime = 27.03.2021 13:29:37.875
Delay = 171t, [ms]
ServerTime = 27.03.2021 13:29:38.044
Delay = 156t, [ms]
ServerTime = 27.03.2021 13:29:38.198
Delay = 156t, [ms]
ServerTime = 27.03.2021 13:29:38.359
-------------------------------------------------------
Equations in Assembly: SmplMath

TimoVJL

#7
March 28, 2021, 03:00:39 AM
From Finland
Code Select
pool.ntp.org
Delay = 31t, [ms]
ServerTime = 27.03.2021 15:58:30.793
Delay = 16t, [ms]
ServerTime = 27.03.2021 15:58:30.817
Delay = 31t, [ms]
ServerTime = 27.03.2021 15:58:30.858
Delay = 31t, [ms]
ServerTime = 27.03.2021 15:58:30.891
Delay = 31t, [ms]
ServerTime = 27.03.2021 15:58:30.925
-------------------------------------------------------
time.nist.gov
Delay = 172t, [ms]
ServerTime = 27.03.2021 15:58:31.132
Delay = 171t, [ms]
ServerTime = 27.03.2021 15:58:31.308
Delay = 171t, [ms]
ServerTime = 27.03.2021 15:58:31.496
Delay = 172t, [ms]
ServerTime = 27.03.2021 15:58:31.671
Delay = 171t, [ms]
ServerTime = 27.03.2021 15:58:31.856
-------------------------------------------------------
time-c.nist.gov
Delay = 141t, [ms]
ServerTime = 27.03.2021 15:58:32.040
Delay = 141t, [ms]
ServerTime = 27.03.2021 15:58:32.189
Delay = 125t, [ms]
ServerTime = 27.03.2021 15:58:32.317
Delay = 140t, [ms]
ServerTime = 27.03.2021 15:58:32.460
Delay = 124t, [ms]
ServerTime = 27.03.2021 15:58:32.597
-------------------------------------------------------
tick.usno.navy.mil
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
-------------------------------------------------------
ut1-wwv.nist.gov
Delay = 171t, [ms]
ServerTime = 27.03.2021 15:58:38.091
Delay = 172t, [ms]
ServerTime = 27.03.2021 15:58:38.262
Delay = 172t, [ms]
ServerTime = 27.03.2021 15:58:38.430
Delay = 171t, [ms]
ServerTime = 27.03.2021 15:58:38.599
WSA Error
eax = 10060t
-------------------------------------------------------
ntp0.cornell.edu
Delay = 141t, [ms]
ServerTime = 27.03.2021 15:58:40.242
Delay = 109t, [ms]
ServerTime = 27.03.2021 15:58:40.344
Delay = 109t, [ms]
ServerTime = 27.03.2021 15:58:40.463
Delay = 125t, [ms]
ServerTime = 27.03.2021 15:58:40.591
Delay = 110t, [ms]
ServerTime = 27.03.2021 15:58:40.704
-------------------------------------------------------
time.google.com
Delay = 62t, [ms]
ServerTime = 27.03.2021 15:58:40.801
Delay = 47t, [ms]
ServerTime = 27.03.2021 15:58:40.845
Delay = 47t, [ms]
ServerTime = 27.03.2021 15:58:40.897
Delay = 47t, [ms]
ServerTime = 27.03.2021 15:58:40.944
Delay = 46t, [ms]
ServerTime = 27.03.2021 15:58:40.992
-------------------------------------------------------
time.windows.com
Delay = 46t, [ms]
ServerTime = 27.03.2021 15:58:41.074
Delay = 47t, [ms]
ServerTime = 27.03.2021 15:58:41.121
Delay = 31t, [ms]
ServerTime = 27.03.2021 15:58:41.161
Delay = 62t, [ms]
ServerTime = 27.03.2021 15:58:41.222
Delay = 47t, [ms]
ServerTime = 27.03.2021 15:58:41.267
-------------------------------------------------------
time.euro.apple.com
Delay = 47t, [ms]
ServerTime = 27.03.2021 15:58:41.344
Delay = 31t, [ms]
ServerTime = 27.03.2021 15:58:41.378
Delay = 47t, [ms]
ServerTime = 27.03.2021 15:58:41.428
Delay = 31t, [ms]
ServerTime = 27.03.2021 15:58:41.462
Delay = 63t, [ms]
ServerTime = 27.03.2021 15:58:41.523
-------------------------------------------------------
May the source be with you

Biterider

#8
March 28, 2021, 07:37:49 PM Last Edit: March 28, 2021, 08:52:16 PM by Biterider
Hi
Thanks all for the supplied information.  :thup:
I analyzed the timing information returned by all of the tested NTP servers and found that the time it takes for the server to prepare the returned message is negligible compared to the time it takes to transmit it over the net.
The larger the transmission delay, the greater the inaccuracy of the time correction on the client side. This is the reason to choose a server with a quick response.
I've found that the biggest dependency is the connection to the internet (residential area or in a business connected to the internet via fiber optic), the distance to the server, and the time of the day.

For now, I'd say the best options are time.windows.com, time.google.com, and pool.ntp.org in that order.
It would be great if there was more data to back this up.

Biterider

LiaoMi

#9
March 28, 2021, 10:23:42 PM
From Germany

Code Select
pool.ntp.org
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
-------------------------------------------------------
time.nist.gov
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
Delay = 282t, [ms]
ServerTime = 28.03.2021 11:25:41.551
Delay = 172t, [ms]
ServerTime = 28.03.2021 11:25:41.662
-------------------------------------------------------
time-c.nist.gov
Delay = 125t, [ms]
ServerTime = 28.03.2021 11:25:41.789
Delay = 125t, [ms]
ServerTime = 28.03.2021 11:25:41.920
Delay = 125t, [ms]
ServerTime = 28.03.2021 11:25:42.051
Delay = 125t, [ms]
ServerTime = 28.03.2021 11:25:42.179
Delay = 125t, [ms]
ServerTime = 28.03.2021 11:25:42.308
-------------------------------------------------------
tick.usno.navy.mil
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
WSA Error
eax = 10060t
-------------------------------------------------------
ut1-wwv.nist.gov
Delay = 172t, [ms]
ServerTime = 28.03.2021 11:25:44.874
Delay = 171t, [ms]
ServerTime = 28.03.2021 11:25:45.042
Delay = 172t, [ms]
ServerTime = 28.03.2021 11:25:45.216
Delay = 172t, [ms]
ServerTime = 28.03.2021 11:25:45.387
Delay = 203t, [ms]
ServerTime = 28.03.2021 11:25:45.600
-------------------------------------------------------
ntp0.cornell.edu
Delay = 125t, [ms]
ServerTime = 28.03.2021 11:25:45.884
Delay = 141t, [ms]
ServerTime = 28.03.2021 11:25:46.026
Delay = 125t, [ms]
ServerTime = 28.03.2021 11:25:46.153
Delay = 125t, [ms]
ServerTime = 28.03.2021 11:25:46.281
Delay = 125t, [ms]
ServerTime = 28.03.2021 11:25:46.410
-------------------------------------------------------
time.google.com
Delay = 46t, [ms]
ServerTime = 28.03.2021 11:25:46.464
Delay = 47t, [ms]
ServerTime = 28.03.2021 11:25:46.510
Delay = 47t, [ms]
ServerTime = 28.03.2021 11:25:46.563
Delay = 31t, [ms]
ServerTime = 28.03.2021 11:25:46.600
Delay = 47t, [ms]
ServerTime = 28.03.2021 11:25:46.658
-------------------------------------------------------
time.windows.com
Delay = 47t, [ms]
ServerTime = 28.03.2021 11:25:46.747
Delay = 47t, [ms]
ServerTime = 28.03.2021 11:25:46.798
Delay = 46t, [ms]
ServerTime = 28.03.2021 11:25:46.847
Delay = 47t, [ms]
ServerTime = 28.03.2021 11:25:46.899
Delay = 47t, [ms]
ServerTime = 28.03.2021 11:25:46.947
-------------------------------------------------------
time.euro.apple.com
Delay = 47t, [ms]
ServerTime = 28.03.2021 11:25:47.003
Delay = 62t, [ms]
ServerTime = 28.03.2021 11:25:47.069
Delay = 47t, [ms]
ServerTime = 28.03.2021 11:25:47.112
Delay = 63t, [ms]
ServerTime = 28.03.2021 11:25:47.186
Delay = 63t, [ms]
ServerTime = 28.03.2021 11:25:47.262
-------------------------------------------------------

Biterider

#10
April 17, 2021, 05:12:02 PM
Hi
I've gathered information day and night for some weeks now and found a clear winner in terms of reliability from several points around the world. It's not the fastest, but I almost got a response from the server.
It's time.windows.com. I hope that it will continue to do so in the future.  :biggrin:

Biterider
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