Is there built in Kotlin function to use `System.currentTimeInMillis()` in Kotlin? If not what shoul...

# multiplatform

[Atul Gupta]

Is there built in Kotlin function to use System.currentTimeInMillis() in Kotlin? If not what should be the fallback for native, jvm(desktop) and IOS?

[mohamed rejeb]

You can use: Clock.System.now()
in https://github.com/Kotlin/kotlinx-datetime

[Atul Gupta]

Thanks will look

[Atul Gupta]

This will required coreDesugaring in android for 23 api above. Right?

Found it: If you target Android devices running *below API 26*, you need to use Android Gradle plugin 4.0 or newer and enable core library desugaring.

[mohamed rejeb]

If you want to avoid this, you can use expect/actual and use java datetime for android and jvm and use kotlinx-datetime for the other targets

[Atul Gupta]

For all expect actual is this expected to make top level function? I am concerned that all my function will pollute the global namespace

[mohamed rejeb]

You can have an expect actual with objects and have some methods inside it.

[mohamed rejeb]

Like this:

expect object DateTime {
    fun currentTimeInMillis(): Long
}

[hfhbd]

What exactly do you want to achieve? If you need to measure some function call, you can also use measureTime

[Atul Gupta]

Just wanted to insert a entity into room with creation time in ms

[hfhbd]

Then you can also add a default value to your column: CURRENT_TIMESTAMP