Android Question Get the time in UTC

[Najirm]

DateTime.SetTimeZone(0)
DateTime.DateFormat = "yyyy-MM-dd'T'HH:mm:ss'Z'"

Dim now As Long
now = DateTime.now
Log("The date is: " & DateTime.Date(now))

With the above code I'm getting the time in UTC. But somewhere I read like we shouldn't set SetTimeZone() to zero.

So which is the correct way to get the time in UTC.

Current time

2015-10-06T13:29:32Z

Time in UTC

2015-10-06T09:29:32Z

 

[Roycefer]

Instead of setting the time zone, just get the time zone offset and add its negative to the current time.

 

[Najirm]

By setting DateTime.SetTimeZone(-(DateTime.GetTimeZoneOffsetAt(now))) the output is

2015-10-06T05:29:32Z

 

[Roycefer]

This is what I meant:

Sub UTCTime As String
    DateTime.DateFormat = "yyyy-MM-dd'T'HH:mm:ss'Z'"
    Dim offset As Double = DateTime.GetTimeZoneOffsetAt(DateTime.Now)
    Dim result As String = DateTime.Date(DateTime.Now-offset*DateTime.TicksPerHour)
    Log(result)
    Return result
End Sub

 

[Erel]

As a rule of thumb beware of date / time arithmetics. In most cases they are not 100% correct.

I think that setting the app time zone to 0 is a good solution here.