B4J Question DateTime.Now value

[hanyelmehy]

DateTime.Now return time not match with PC time (-1h)
i need simple way to get same PC time ,without any addtional setting

 

[Daestrum]

Sounds like a daylight saving setting problem. Are you sure DST is on? (assuming you are in a country that has daylight saving)

 

[hanyelmehy]

yes we have daylight saving and setting DateTime.SetTimeZone to +1 solve the issue but these make user need to adjust time by him self
i just want to simpley get exact PC time like its without needing for any addtional adjustment

 

[Daestrum]

I don't see that problem on my pc the time returned from

DateTime.Time(DateTime.Now)

is the same as the pc clock.

 

[hanyelmehy]

I don't see that problem on my pc the time returned from

DateTime.Time(DateTime.Now)

is the same as the pc clock.

in my case

DateTime.Time(DateTime.Now)

return PC Time -1h , i need to adjust DateTime.SetTimeZone to +1

 

[Erel]

What is your PC timezone?
What is the output of:

Log("offset: " & DateTime.TimeZoneOffset)
Log(DateTime.Now)
Log(DateTime.Time(DateTime.Now))

 

[hanyelmehy]

What is your PC timezone?
What is the output of:

Log("offset: " & DateTime.TimeZoneOffset)
Log(DateTime.Now)
Log(DateTime.Time(DateTime.Now))

Time Zone :UTC+02.00
Note :we have now daylight saving

offset: 0
1725265773364
08:29 AM

 

[Erel]

What is the output of this:

Dim TimeZone As JavaObject
TimeZone = TimeZone.InitializeStatic("java.util.TimeZone").RunMethod("getDefault", Null)
Log(TimeZone)

 

[hanyelmehy]

What is the output of this:

Dim TimeZone As JavaObject
TimeZone = TimeZone.InitializeStatic("java.util.TimeZone").RunMethod("getDefault", Null)
Log(TimeZone)

(ZoneInfo) sun.util.calendar.ZoneInfo[id="Africa/Cairo",offset=7200000,dstSavings=0,useDaylight=false,transitions=129,lastRule=null]

 

[Erel]

Are you sure that you are NOT calling DateTime.SetTimeZone somewhere? The offset should be 2 hours.

 

[teddybear]

JDK needs to be upgraded. it works on jdk17, jdk21 also works

 

[hanyelmehy]

Are you sure that you are NOT calling DateTime.SetTimeZone somewhere? The offset should be 2 hours.

sorry ,when do test i forget to remove DateTime.SetTimeZone ,offset: value is 2
i think the issue that (useDaylight=false) ,when its actually on PC is true

 

[Erel]

1. Update to OpenJdk 19.
2. The daylight offset is not related to the OS settings. The JVM includes a database with the time zones and the daylight offsets.