but I think it shouldn’t be complicated, try transforming the kotlin date object to a JS object then use native JS formatting

I think I'm already doing what you suggested. I have this snippet

val formatter = DateTimeFormatter.ofPattern("MMMM yyyy")
val fromDate = LocalDateTime.parse(from, DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss"))
val toDate = LocalDateTime.parse(to, DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss"))

"${formatter.format(fromDate)} - ${formatter.format(toDate)}"

And the import qualifiers are all from this package

kotlinx.datetime.internal.JSJoda.*

Ah quick update... I found a solution 😅 By using the regular

kotlinx.datetime.*

import qualifier I noticed there where other functions I could use, by using this I can actually change the format of the string dependent on the Locale

val localeOptions = dateLocaleOptions {
    month = "short"
    year = "numeric"
}

val fromDateFormatted = LocalDateTime.parse(from).toInstant(TimeZone.UTC).toJSDate().toLocaleString("en", localeOptions)
val toDateFormatted = LocalDateTime.parse(to).toInstant(TimeZone.UTC).toJSDate().toLocaleString("en", localeOptions)

"$fromDateFormatted - $toDateFormatted"

When not adding "en" as a Locale, the browser/device Locale seems to be used.

any case, thanks for your replies and the article!

sure, glad to help, a follow on medium and maybe some claps can help me as well 😄