Android Question device time

jchal · Mar 1, 2017

i am using this

B4X:

 mytime=DateTime.Time(DateTime.Now)

first i dont get the correct time i need the device time

JCO · Mar 1, 2017

jchal said:
i am using this

B4X:

mytime=DateTime.Time(DateTime.Now)

first i dont get the correct time i need the device time

Time is returned as Ticks.
If you want it in a specific format, you can use something like:

B4X:

DateTime.DateFormat = "HH:mm:ss"
mytime=DateTime.Date(DateTime.Now)

jchal · Mar 1, 2017

i have done this but the device has time e.g 02:01:00 and it shows 01:06:00
in the next loop it makes afre 20 seconts or even after 1 minuta the time does not change

eps · Mar 1, 2017

TimeZone...

I guess you've read this? https://www.b4x.com/android/help/core.html#datetime

Have you got a small project with this code in it?

Erel · Mar 1, 2017

It is not related to time zone.

Please create a new project and run this code:

B4X:

Sub Activity_Create(FirstTime As Boolean)
   Log($"$DateTime{DateTime.Now}"$)
End Sub

It should print the same date and time that you see on the system bar.

jchal · Mar 1, 2017

it gives 16:03 and the time is 16:36 on the phone

Erel · Mar 1, 2017

Which device are you using?

What are the values of Log(DateTime.TimeZoneOffset) and Log(DateTime.Now) ?

jchal · Mar 1, 2017

Log(DateTime.TimeZoneOffset) 2 and Log(DateTime.Now) 1488382549228
the time the device dysplaying is 5:36 the device is a samsung duos but i tested with a few other devices and i get the same thing

Erel · Mar 2, 2017

1. What is the time zone set to under Settings - Date & Time?

2. What is the output of this code:

B4X:

Log($"$DateTime{DateTime.Now}"$)
Log("offset: " & DateTime.TimeZoneOffset)
Log(DateTime.Now)

3. What is the correct time when you ran this code?

corwin42 · Mar 2, 2017

jchal said:
it gives 16:03 and the time is 16:36 on the phone

What DateTime.TimeFormat did you set? I guess "HH:MM" which is wrong because MM is for the month. So using this timeformat you will get 16:03 for 16:36 (03 for march).
Use DateTime.TimeFormat = "HH:mm")

Erel · Mar 2, 2017

This can't be as I asked him to create a new project with only this code:

B4X:

Sub Activity_Create(FirstTime As Boolean)
Log($"$DateTime{DateTime.Now}"$)
End Sub

Or can it be...

corwin42 · Mar 2, 2017

Erel said:
Or can it be...

I sometimes educate Oracle SQL and when the students do exercises about database date and time functions a wrong format mask is the most common mistake the students do. In SQL there is a similar trap in the format masks ("mm" for month and "mi" for minute).
Let's see what @jchal will report.

jchal · Mar 4, 2017

on the new project i created according to erel sample everithing is ok time and date are dysplayed correct, what i am doing wrong on my project???
what i try to do is to store the date and time and the database
my code is the following

B4X:

Sub Service_Start (StartingIntent As Intent)
    DateTime.dateformat = "yyyy/MM/dd"
        DateTime.TimeFormat= "HH:MM:ss"

      StartServiceAt("", DateTime.now + 1 * DateTime.TicksPerMinute,True)
   
    
        mydate=DateTime.date(DateTime.now)
        mytime=DateTime.Time(DateTime.Now)
        Dim InsertNewPossition As HttpJob
   InsertNewPossition.Initialize("InsertNewPossition", Me)
 
   InsertNewPossition.download2("http://www.mydomain.com/store.php", Array As String ("action", "InsertNewPossition", "user_name", myusername, "date", mydate, "time", mytime))

End Sub

do you see any error???? because i dont and the time never changes 13:02, 13:02......13:02

MarcoRome · Mar 4, 2017

jchal said:
on the new project i created according to erel sample everithing is ok time and date are dysplayed correct, what i am doing wrong on my project???
what i try to do is to store the date and time and the database
my code is the following

B4X:

Sub Service_Start (StartingIntent As Intent) DateTime.dateformat = "yyyy/MM/dd" DateTime.TimeFormat= "HH:MM:ss" StartServiceAt("", DateTime.now + 1 * DateTime.TicksPerMinute,True) mydate=DateTime.date(DateTime.now) mytime=DateTime.Time(DateTime.Now) Dim InsertNewPossition As HttpJob InsertNewPossition.Initialize("InsertNewPossition", Me) InsertNewPossition.download2("http://www.mydomain.com/store.php", Array As String ("action", "InsertNewPossition", "user_name", myusername, "date", mydate, "time", mytime)) End Sub

do you see any error???? because i dont and the time never changes 13:02, 13:02......13:02

TimeFormat ----> "HH:MM:ss"
As writed @corwin42 in #10

What DateTime.TimeFormat did you set? I guess "HH:MM" which is wrong because MM is for the month. So using this timeformat you will get 16:03 for 16:36 (03 for march).
Use DateTime.TimeFormat = "HH:mm")

jchal · Mar 4, 2017

thanks you are correct it worked with HH:mm

Erel · Mar 5, 2017

jchal said:
on the new project i created according to erel sample everithing is ok time and date are dysplayed correct, what i am doing wrong on my project???

This is not what you wrote in your previous post:

jchal said:
it gives 16:03 and the time is 16:36 on the phone

This is not the correct way to ask the community to help you. You must be more accurate. I did check various things on multiple devices after you wrote that it didn't work.

jchal · Mar 5, 2017

sorry for this erel but it was not my fault, i did what you said and in the first place it gave me what i told you.
then i uninstaled b4a just incase and i was desapointed to be honest with you with the result, i knew i was doing something wrong but i did not know what it was...
what i did i copy and paste your code once more in the new instalation and the corect result was there.
then i run my project did and i change the Format to HH:mm and it worked , that is why i retruned and informed everybody that the problem was solved.
i appologize to everybody if i cause problems but this was not my intension.......
also you have to know that the support given in here it helped me a lot solving problems and creating mobile apps that with other more commecial products i will not be able to ......

Erel · Mar 5, 2017

The default TimeFormat is "HH:mm:ss". Reinstalling B4A or anything like that will never change it.

My guess is that you put the code in the main activity while there was existing code in the starter service that changed the time format to something else.

Android Question device time

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