Kotlin-multiplatform timestamp to time in milliseconds (unix time)

Native
1

I’m using kotlin-multiplatform for iOS and Android targets.

I’m deserializing json string with timestamp inside: 2020-01-16T11:33:34.553Z

I would like to convert this timestamp to time in milliseconds (unix time). Is it possible to do this using kotlin native libraries?

I’m using kotlin multiplatform 1.3.72.

2

You have not well-defined your issue, but I believe what you need is a multiplatform library to handle time and time serialization/deserializatiom.

If I remember correctly, the Kotlin team is working on an official multiplatform solution. In the meam time, have a look at kclock!

3

Sorry for miss understanding. Question is: how to convert 2020-01-16T11:33:34.553Z to unix milliseconds in kotlin multiplatform?
As far as I understand, this could be done only with 3rd party libraries?

4

You could do it by hand but why when there is a library?
If you plan doing it by hand I assure you that representing time with all its possible string representations it’s not an easy task.

5

Basicly I do this conversion when I deserialize my data json (5mb file). In this deserialization I have date that is presented as string, and I would like to get it as unix timestamp. I have my @Serializer class that do the magic (currently slow, because I use some cinterop for iOS - not the best solution). I have quite big data set, so performance meters. Thats why I would like to do this with Kotlin std lib (assuming, that this is most fastest solution) instead of 3rd party lib.
Maybe also kclock would work fine, as you mentioned.