//[astronomy](../../../index.md)/[io.github.cosinekitty.astronomy](../index.md)/[Time](index.md)/[toString](to-string.md) # toString open override fun [toString](to-string.md)(): [String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html) Converts this Time to ISO 8601 format, expressed in UTC with millisecond resolution. #### Return Example: "2019-08-30T17:45:22.763Z".