dateTime

import kotlinx.datetime.*
import kotlinx.datetime.format.*
import kotlin.test.*
fun main() { 
   //sampleStart 
   // Using a predefined LocalDateTime format in a larger format
val format = DateTimeComponents.Format {
    dateTime(LocalDateTime.Formats.ISO)
    offset(UtcOffset.Formats.FOUR_DIGITS)
}
val formatted = format.format {
    setDateTimeOffset(
        LocalDate(2021, 1, 13).atTime(9, 34, 58, 120_000_000),
        UtcOffset(hours = 2)
    )
}
check(formatted == "2021-01-13T09:34:58.12+0200") 
   //sampleEnd
}