Android emulator does not do DateTime.Now correctly

Question

Android emulator does not do DateTime.Now correctly

Lloyd Sheen 1,486

I have a control that will show a list of items for a day. If the time when the app is run is before noon it will show the last day's items and after noon it will show items for that day.

Now I am not sure if this ever worked as to test I created my own DateTime so it would work.

When I take out the line to set the time I get the following:

3/13/2023 1:26:08 PM from DateTime.Now

3/13/2023 2.04 PM is actual time.

Now I thought it might have to do with Daylight saving time but the difference is about 38 mins so I have no idea what is happening. I created a WPF app and put the DateTime.Now in it and it returns the correct DateTime. I first thought that I needed to set a timezone for the emulator but 38 mins is not a resetable time that I know of.

I assume that the returned DateTime is set by the code running in the emulator. If I run the code using my phone the return value of .Now is correct.

Any ideas as I will have other requirements that are time dependent.

Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 50,126 Reputation points Microsoft External Staff

2023-03-14T06:13:43.1666667+00:00
For further investigation, could you please provide the following information?

Is the time output of your Android emulator using Now the same as the time on the Android emulator status bar?

Have you changed the settings in Date & Time in the Android emulator?

Will this issue occur if I create a new emulator?

Your prompt reply will be highly appreciated.
Lloyd Sheen 1,486 Reputation points

2023-03-14T11:45:14.8066667+00:00

The time shown on the emulator is also 38 mins off. I have no idea how to change the time on the emulator, clicking the settings icon does nothing. This happens on both v31 and v33 of the Android emulator.
Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 50,126 Reputation points Microsoft External Staff

2023-03-15T05:16:27.4433333+00:00

According to my tests, if you don't turn off the emulator for a long time, and the computer goes into hibernation, the time on the Android emulator will be slower than the actual time.

Restarting the emulator resolves this issue.

If the problem persists after rebooting, you will need to manually adjust the time in the Date & Time settings of the Android emulator.
Lloyd Sheen 1,486 Reputation points

2023-03-15T11:52:32.07+00:00

Thanks, you are correct with this. I regularly put my desktop to sleep and the emulator is running then. The keyboard was put in unusable state and an execution brought a dialog saying that when it was attempting the execution that (sorry couldn't copy the text from the dialog) VS and the emulator had basically stopped dealing with each other and suggested that I save files and terminate VS. I clicked OK and then just got the busy icon. I had to kill the emulator to get VS to terminate.

As far as the time went I deleted v33 of emulator (android) as I have had lots of problems with it. I then did a factory reset on V31 and then the time came back correct. This seems to be the solution so I will do a factory reset on the emulator at the start of day to make things work better.

1 answer

Your answer

Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 50,126 Reputation points Microsoft External Staff

2023-03-14T06:13:43.1666667+00:00

For further investigation, could you please provide the following information?

Is the time output of your Android emulator using Now the same as the time on the Android emulator status bar?

Have you changed the settings in Date & Time in the Android emulator?

Will this issue occur if I create a new emulator?

Your prompt reply will be highly appreciated.
Lloyd Sheen 1,486 Reputation points

2023-03-14T11:45:14.8066667+00:00

The time shown on the emulator is also 38 mins off. I have no idea how to change the time on the emulator, clicking the settings icon does nothing. This happens on both v31 and v33 of the Android emulator.
Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 50,126 Reputation points Microsoft External Staff

2023-03-15T05:16:27.4433333+00:00

According to my tests, if you don't turn off the emulator for a long time, and the computer goes into hibernation, the time on the Android emulator will be slower than the actual time.

Restarting the emulator resolves this issue.

If the problem persists after rebooting, you will need to manually adjust the time in the Date & Time settings of the Android emulator.
Lloyd Sheen 1,486 Reputation points

2023-03-15T11:52:32.07+00:00

Thanks, you are correct with this. I regularly put my desktop to sleep and the emulator is running then. The keyboard was put in unusable state and an execution brought a dialog saying that when it was attempting the execution that (sorry couldn't copy the text from the dialog) VS and the emulator had basically stopped dealing with each other and suggested that I save files and terminate VS. I clicked OK and then just got the busy icon. I had to kill the emulator to get VS to terminate.

As far as the time went I deleted v33 of emulator (android) as I have had lots of problems with it. I then did a factory reset on V31 and then the time came back correct. This seems to be the solution so I will do a factory reset on the emulator at the start of day to make things work better.

Answer 1

Lloyd Sheen 1,486

To reset the time on the emulator you can delete it and re-add it or do a factory reset on the emulator to get the correct time.

Lloyd Sheen 1,486 Reputation points

2023-03-20T18:09:56.4033333+00:00

I put the answer in but cannot mark it as the accepted answer. When will this site start working???
Rob Caplan - MSFT 6,037 Reputation points Microsoft Employee Moderator

2023-03-20T18:11:01.1966667+00:00

https://learn.microsoft.com/en-us/answers/support/accept-answer#limitations

You can only accept answers from other users, i.e., you cannot accept your own answer.
Lloyd Sheen 1,486 Reputation points

2023-03-20T18:13:24.0166667+00:00

Seems a bit strange that I cannot tell others that this is the answer that solves the question.

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Android emulator does not do DateTime.Now correctly

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