react-nativemomentjsmoment-timezonereact-native-hermes

Moment returning an invalid date while using Hermes JS Engine

When I was using jsc Engine, everything was working fine but when I shifted from jsc engine to Hermes Engine in my react native app I started getting Invalid date where I was using moment.

CODE:

const defaultDate = moment(currentTimeStamp).format("YYYY/MM/DD"); //till this it works fine
return moment(defaultDate).toDate().getTime(); // throws INVALID DATE
Solution

  • After some R&D, I was able to figure out the issue myself so I thought to share it here.

    Solution 1 :

    Instead of using format like format("YYYY/MM/DD");. Use it like format("YYYY-MM-DD"); as this is one of the standard format that moment understands.

    Solution 2:

    If you need that format only(which was my case). You need to tell the moment the format that you are using. Like this:

    return moment(defaultDate,"YYYY/MM/DD").toDate().getTime();